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Ice Sheets

Melting Ice Sheets Will Cause Global Sea Levels To Rise Over 15 Inches By 2100

A new study performed by an international team of more than 60 ice, ocean, and atmospheric scientists has estimated that if humans keep emitting greenhouse gases unnecessarily at the rate that we’re going now, global sea levels will rise more than 15 inches by 2100.

Greenhouse gases such as carbon dioxide are emitted into the atmosphere every day, and they impact climate change by causing global temperatures to increase, leading to a myriad of other detrimental environmental events. One of these events includes the melting of ice sheets from some of the worlds largest bodies of ice.

As things continue to heat up, ice sheets in Greenland and Antarctica are particularly worrying scientists, as they’re both located at opposite poles of the world and their simultaneous melting is causing the entire planet to struggle. Sophie Nowichi was the project leader of this study and recently released a statement about how the major uncertainty regarding ice sheets specifically has made it hard to measure just how severe things can get in terms of global warming.

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“One of the biggest uncertainties when it comes to how much sea levels will rise in the future is how ice sheets will contribute, and how much the ice sheets contribute is really dependent on what the climate will do.”

This study is a part of a larger initiative known as the Ice Sheet Model Intercomparison Project (ISMIP6). This initiative is led by NASA’s Goddard Space Flight Center in Maryland. The team working for ISMIP6 has been measuring how sea levels will rise between 2015 and 2100, specifically in relation to greenhouse gas emissions.

They found that higher emissions of these greenhouse gases extending throughout time will cause Greenland to contribute about 3.5 inches to the global rise in sea levels, while levels from Antarctica are a little harder to calculate based on the massive size. Antarctica has bodies of ice known as “shelves” which scientists are predicting will break down over time and cause an even more devastating increase to sea levels. 

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Right now it’s predicted that at the current rate of emissions Antarctica can contribute around 12 inches to sea levels in the future. Helene Seroussi is an ice scientist at NASA’s Jet Propulsion Laboratory in Southern California who worked on the study and recently released a statement emphasizing that this particular study is only providing predictions for ice loss between 2015 and 2100, and doesn’t take into account the already significant amount of loss that’s already occurred. 

“The strength of ISMIP6 was to bring together most of the ice sheet modeling groups around the world, and then connect with other communities of ocean and atmospheric modelers as well, to better understand what could happen to the ice sheets.”

According to Seroussi and other researchers working on the study it took over 6 years of workshops, conferences, and data exchange between scientists from around the world to compile these predictions and work together on ways in which humans can potentially correct their mistakes in regard to climate change. 

The specific report from the ISMIP6 will help the Intergovernmental Panel on Climate Change (IPCC) with their special report regarding melting ice and global sea levels/climate change in general. This report is projected to compile data from a multitude of major studies and will be released in 2022.

Wild Elephants

Worldwide Animal Population Has Declined Nearly 70% In The Past 50 Years  

According to the World Wildlife Fund’s (WWF) Living Planet Report for 2020, nearly 21,000 monitored populations of mammals, fish, reptiles, amphibians, and birds – which make up around 4,400 species – have declined an average of 68% between 1970 and 2016. Even more staggering, species living in Latin America and the Caribbean have been disproportionately impacted and have declined, on average, by up to 94%. 

The WWF releases this same report every two years to show us how severe climate change is actually impacting the planet and its billions of inhabitants. The report also reveals how these species specific ecosystems have dwindled within past decades, and shows a clear increase in damage that keeps getting progressively worse every year. 

WWF President and CEO Carter Roberts recently made a statement condemning humanity for destroying species populations out of greed and economic gain. He also claims that the US’s handling of the Covid-19 pandemic goes to show how irresponsible our world leaders can actually be when it comes to major issues impacting the entire planet. 

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“We cannot shield humanity from the impacts of environmental destruction. It’s time to restore our broken relationship with nature for the benefit of species and people alike.”

The report directly blames humans as the sole reason for this massive decline and “dire state” the planet is now in. Generally speaking, it claims that the exponential growth of “human consumption, population, global trade and urbanization over the last 50 years” it’s what’s led to the unprecedented and monumental decline of natural resources and habitats. 

The destruction of rainforest habitats for farming has been a key factor in the loss of biodiversity and overall population growth for certain species. The amount of land that’s been stripped from natural habitats in Europe, Central Asia, North America, Latin America, and the Caribbean accounts for 80% of total global deforestation. Land loss in those areas has also led to a 70% decrease in terrestrial biodiversity and 50% decrease in freshwater species biodiversity. The systems now implemented in these cleared out plots of land emit 29% of global greenhouse gases as well. 

“Climate change creates an ongoing destructive feedback loop in which the worsening climate leads to the decline in genetic variability, species richness and populations, and that loss of biodiversity adversely affects the climate.”

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The report states that every single part of the ocean is affected by overfishing pollution and littering. Humans depend on certain marine ecosystems for food and other resources, however, the process of acquiring these resources is doing more damage than good. The emphasis on human health and the planet’s health has also never been more connected. 

The Covid-19 pandemic and multiple wildfires, and other natural disasters that seem to be occurring constantly at this point, prove that humans and nature are greatly connected and need one another to survive. Within the past 50 years, the child mortality and poverty rate has decreased while life expectancy has increased, however, the irreversible damage being done to the planet could completely undo that due to a lack of resources and healthy living environments. 

Within the past 80 years, the rate of infectious diseases emerging has increased “dramatically,” and nearly half of the diseases that have surfaced did so as a direct result of land destruction/change brought on by the food industry. One study reported that diseases originating in animals are responsible for 3 million deaths every year; the Covid-19 pandemic being the most severe example of this. 

So what’s the solution? For those of us at home, we can continue to practice being green everyday, however, the real change needs to come from our world leaders and the multiple industries that exist and actively destroy the environment for financial gain. It’s up to us at home to stay educated and informed, and to vote in all elections for candidates who support improving the planet.

Iceberg

Earth Lost 28 Trillion Tons Of Ice In Less Than 30 Years Due To Climate Change 

Scientists working at Leeds and Edinburgh Universities and the University College London recently released a review paper that revealed data taken from surveys of the world’s glaciers, mountains, and ice sheets between the years 1994 and 2017. The information revealed a “staggering” loss in ice throughout the Earth’s many natural ice formations. 

Professor Andy Shepherd is the director of Leeds University’s Center for Polar Observation and Modeling, and recently spoke with the press about this dramatic loss in ice, and rising in sea levels as a result. 

“Melting glaciers and ice sheets could cause sea levels to rise dramatically, possibly reaching 3 feet by the end of the century.”

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The loss in ice is the least of scientists worries, it’s more about the direct, and indirect, effects of that melting that could have a detrimental impact on the planet and its billions of inhabitants. One of the biggest concerns is a major disruption in biological health within the waters of the Arctic and Antarctica. Loss in health in these waters specifically can reduce Earth’s overall ability to reflect solar radiation back into space so it doesn’t heat the planet too much. 

These findings perfectly match up with the “worst-case-scenario” predictions that the United Nations Intergovernmental Panel on Climate Change outlined. According to Shepherd this is the first time anyone has looked at all the ice that has/is disappearing from the planet; previously studies would only map large cool areas such as Greenland or the Arctic exclusively. 

“This is the first time anyone has looked at all the ice that is disappearing from the entire planet. What we have found has stunned us.”

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Shepherd went on in the report itself to state that there is “little doubt” that the vast majority of this ice loss is a direct result of climate change. The report was released one week after scientists working at Ohio State University discovered that the ice sheet covering Greenland may have “passed the point of no return” in regards to how melted it is. 

The Greenland melting is due to a lack in annual snowfall; which is also a result of global warming. The rate at which it snows every year in Greenland isn’t enough to keep up with the pace at which the ice is melting throughout the rest of the year. This means that Greenland’s ice sheet will keep melting and losing ice even if climate change is somehow reversed in the next few years. 

Scientists are worried about Greenland specifically because its ice sheet is considered the world’s second-largest body of water, therefore if it melts, sea levels will rise to an unfathomable level. According to a NASA study 2010-2019 was the hottest decade ever recorded on Earth; which isn’t a shock to most, but the results are now starting to come to life. 

This is why the election in November is so important, as climate change has been a major point of contention among Republicans and Democrats since the term “global warming” was initially created. If you’re a US resident and have yet to register, or aren’t sure where you’re specifically registered, you can check that status here.

Antarctica

Scientists Discover First Methane Leak In Antarctica’s Seabed

Scientists recently discovered an active leak of methane gas coming from the sea floor of Antarctica. These findings were published in the Proceedings of the Royal Society scientific journal, and are worrying many researchers who know that methane gas is likely going to accelerate the process of global heating even more so than it already is.

Methane is one of the greenhouse gases that leads to an acceleration in global warming; much like carbon dioxide does. In normal conditions, when the gas is present under layers of ice, microorganisms living within the ice consume it and slow down the process of it being leaked back into the atmosphere. However, the damage of climate change that the planet has already endured has hindered the effectiveness of this process in Antarctica. 

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The methane leak referred to in the findings initially appeared back in 2011 and, at the time, the microorganisms present took five years to appear and consume a majority of the gas. Now, researchers found that gas is still leaking into the atmosphere despite the presence of these microorganisms. Dr. Andrew Thurer, the oceanographer who led the study, is concerned about these findings, and claims it could take up to a decade for the gas to be consumed, and by then it may be too late. 

“Vast amounts of methane are stored under sea ice. Antarctica is estimated to contain as much as a quarter of Earth’s marine methane.” 

The impact of excessive methane leaks in the planet’s atmosphere is extremely damaging. As global temperatures continue to increase, ice caps/glaciers will continue to melt, and sea levels will rise. That lack of ice is what leads to methane leaks, as there’s less protective layers to contain the methane and house the microorganisms necessary to consume the gas.  

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NASA warned the world in 2018 that the thawing of ice in the Arctic would lead to gas leaks that will cause the planet’s climate to rise at an even more alarming rate than what it’s currently at. Scientists have also long considered the release of methane specifically from ice as a “tipping point in climate change,” which essentially means the effects of global warming have reached an irreversible level. 

Until now, there have been no active methane leaks in Antarctica, and while scientists did confirm that this particular leak came from an unknown source likely unrelated to climate change, its presence it’s still worrisome. 

The only silver lining, according to Thurer, is that these findings can work to deepen climate scientists’ understanding of the way that methane is “consumed and released in Antarctica, something which very little was known before.” Gaining this understanding in Antarctica specifically is key, especially considering the presence of methane could be extremely detrimental to the future of Earth’s climate. 

“Our results suggest that the accuracy of future global climate models may be improved by considering the time it will take for microbial communities to respond to novel methane input.” 

While research on microorganisms absorbing methane gas is a timely process, gaining these insights can help researchers understand how these organisms work, and could potentially lead to the invention of some sort of man-made version of the organisms which can better aide the process of absorbing methane in melting ice layers in the Arctic/Antarctica.

Glacier in Antarctica

Scientists Worried About Rapid Melting Of ‘Doomsday’ Glacier In Antarctica

Climate scientists have always regarded Thwaites glacier in Antarctica as a key factor in terms of climate change and global sea-level risings. The glacier itself is seen as one of the most vulnerable to be impacted by climate change, as its collapse would raise global sea levels by more than half a meter on its own. Its melting would also cause a chain reaction for other major bodies of water in Antarctica, potentially causing sea levels to rise by three meters!

Coastal cities across the globe would be severely impacted if this were to occur, and it’s one of the reasons the glacier has the nickname “Doomsday glacier.” This year, scientists noticed there was warm water near an integral part of the glacier that has never been there before. This warm water has already caused parts of the glacier to deteriorate.

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Thwaites glacier is 76,000 square miles, about the size of England. Ice has already melted from the glacier into the Amundsen Sea and caused 4% of global sea-levels to rise. As the world continues to warm, scientists are worried for the future of this glacier and its impact on the rest of the planet. Paul Cutler is a program director for Antarctic glaciology at America’s National Science Foundation, and he recently spoke with the media about the severity of this glacier melting.  

“The big question is how quickly it becomes unstable. It seems to be teetering at the edge. It is a keystone for the other glaciers around it in Antarctica if you remove it, other ice will start draining into the ocean.” 

Antarctica contains 90% of the world’s ice, most of which remains out of the water and on the continent’s land. The average thickness of ice in Antarctica is 1.6 miles deep, but it can reach depths of up to three miles. 

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The current sea level on Earth is almost 8 inches above what it was before the industrial revolution. The main cause in this rise is an increase in global sea temperatures brought on by intense sun exposure. The sun exposure is brought on due to a depletion in the Earth’s ozone layer, which is meant to protect all of us from intense UV radiation. For nearly 2,000 years before the industrial revolution, global sea levels remained almost completely static. 

Burning fossil fuels has only increased as society has become more modernized, and that burning has only further depleted the ozone layer in Earth’s atmosphere. Additionally, increased levels of carbon dioxide in the atmosphere act as heat traps for the sun. These warmer temperatures obviously cause major ice sheets and glaciers to melt, as they’re not only experiencing a rise in sea temperatures, but air temperatures as well. 

The annual rate in which our global sea-levels rise has doubled since 1990. As time has gone on, the rate at which these glaciers melt has only become more unpredictable, making it difficult for scientists to understand how to better preserve them. However, this more recent melting of Thwaites was specifically brought on by a massive heat wave in the Arctic; which is on the other side of the planet. 

Both the Antarctic and Arctic regions should be our number one priority, as they’re the coldest locations in the world, however, they’re both warming at rates faster than the rest of the world as well. Global warming has already caused such massive natural destruction within the past year alone, it’s time that our world leaders understand we’re currently battling a whole other pandemic in terms of our planets temperatures.

Architects working Together

Antonio Citterio Discusses Resilience And Sustainability In The Architecture Industry

Antonio Citterio’s aim as a designer and architect has always been to create spaces that evoke a sense of quality. Spaces that are useful for the individuals daily life while being creative enough to embody a sense of the client’s personality.

Ozone Layer

Research Team Discovers Evidence Of Mass Extinction Event From 359 Million Years Ago

Researchers at the University of Southampton recently published findings in the journal of Science Advances that revealed evidence of a mass extinction that took place on Earth nearly 360 million years ago. The extinction was a result of high levels of UV radiation that destroyed the planet’s forest ecosystems and killed thousands of species of fish as well. This influx in UV radiation was a result of one of Earth’s climate cycles that collapsed part of the ozone layer.

The ozone layer depletion was a direct response to the rapid warming of the planet brought on by the ending of an intense ice age. The researchers behind these findings were adamant about sharing this evidence, as Earth’s current climate status is showing parallels to what it was like 359 million years ago when this mass extinction took place. The team’s research consisted of collecting rock samples from the mountains in East Greenland. The area of land they were specifically collecting from used to be the location of a huge ancient lake that was “in the arid interior of the Old Red Sandstone Continent, [which] made up of Europe and North America.”

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“This lake was situated in the Earth’s southern hemisphere and would have been similar in nature to modern-day Lake Chad on the edge of the Sahara Desert. Other rocks were collected from the Andean Mountains above Lake Titicaca in Bolivia. These South American samples were from the southern continent of Gondwana, which was closer to the Devonian South Pole. They held clues as to what was happening at the edge of the melting Devonian ice sheet, allowing a comparison between the extinction event close to the pole and close to the equator,” according to media reports.

In a lab setting the researchers dissolved the rocks in hydrofluoric acid which, according to the research, released microscopic plant spores that looked like pollen. These spores had somehow managed to remain preserved for hundreds of millions of years, and upon further exploration, the team discovered these spores had strangely formed spines on their surface. The spores also had dark pigmented walls, which led the team to believe both abnormalities were a result of UV radiation damaging the DNA of the spores themselves. 

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The conclusion was now that during a time of rapid global warming millions of years ago, the ozone layer must have collapsed for a short period, which then resulted in the Earth and all its living inhabitants to be exposed to extremely harmful levels of UV radiation, and thus triggering a mass extinction on both land and in shallow waters. 

“During the extinction, plants selectively survived, but were enormously disrupted as the forest ecosystem collapsed. The dominant group of armored fish became extinct. These extinctions came at a key time for the evolution of our own ancestors, the tetrapods. These early tetrapods are fish that evolved to have limbs rather than fins, but still mostly lived in water. Their limbs possessed many fingers and toes. The extinction reset the direction of their evolution with the post-extinction survivors being terrestrial and with the number of fingers and toes reduced to five,” said Lead researcher Professor John Marshall, of the University of Southampton’s School of Ocean and Earth Science. 

As previously mentioned, Professor Marshall’s main goal with releasing all of this newfound research is to warn humanity of how similar our planet’s current climate looks to how it did right before this mass extinction that killed thousands of species and redirected the way we evolved. The team plans on continuing their remote research in Greenland in hopes to further learn more about past climate emergencies, and how to better prepare for them today.

Hurricane

Hurricanes Continue To Get Stronger As A Result Of Climate Change, According To New Study

Climate change is still just as much of an issue as it’s been for the best decade, however, the intensity of concern over our planet’s climate crisis has subsided due to the Covid-19 pandemic. Even so, it’s becoming increasingly evident to scientists around the world that major natural events such as hurricanes, typhoons, and tropical cyclones have the potential to become much more deadly as the planet continues to heat up. 

According to a study performed by researchers at the University of Wisconsin and the National Oceanic and Atmospheric Administration (NOAA), the probability of storms reaching a hurricane status of category 3, with winds exceeding 110 miles-per-hour, has consecutively increased every decade for the past 40 years. 

“The change is about 8% per decade. In other words, during its lifetime, a hurricane is 8% more likely to be a major hurricane in this decade compared to the last decade,” said Jim Kossin, author of the study.

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The idea that natural disasters get stronger as climate change worsens is not a new concept, and the data has clearly proven this to be correct within the past four decades. The study states that initially researchers were just looking at data from 25 years ago, however, looking back even further would give them even more evidence as to what aspects of man-made global warming that have had the most detrimental effects on the planet. 

“Almost all of the damage and mortality caused by hurricanes is done by major hurricanes (category 3 to 5). Increasing the likelihood of having a major hurricane will certainly increase this risk. The study reveals that global warming has increased sea surface temperature in regions where tropical cyclones form. The combination of these warm temperatures along with changes in atmospheric conditions, have allowed storms to more easily reach higher intensities,” Kossin said.

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Within the past few years specifically, Kossin and his team have been noticing these trends more in the Northern Indian Ocean, but he believes that’s mostly because data collection in that part of the world isn’t as advanced for this type of research, so the disaster occurrences seem much more random when they’re not. This study in particular neglected to include the past two years as well, which Kossin also knows could have skewed the data. 

The research also concluded that global cyclones should be the planet’s top concern for future natural disasters, as they’ve shown the most evidence for growing in intensity as a direct result of global warming. This is due to our ocean temperatures increasing, which results in stronger hurricanes to build out in the middle of the ocean and grow even larger before they hit land. 

“Here, the authors apply an objective technique on four decades of satellite data to create a consistent record of global tropical cyclone intensity, their results are consistent with the theory that increasing sea-surface temperatures are indeed increasing the intensity (but not frequency) of the strongest storms of at least major hurricane strength,” said Ryan Maue, a private industry meteorologist not involved in the recent research.

There are a multitude of natural reasons why these natural disasters have also increased in intensity, however, the evidence is clear. If we want a shot at a more healthy planet in the future, it’s up to us and our world leaders to fix all the damage we’ve caused.

Writer

Dara McAnulty: Meet The 16-Year-Old Author Who’s Trying To Save The Planet

Dara McAnulty is a 16-year-old published author who, in his novel, discusses life in the Northern Island, advocating for climate change policies, living with autism, and finding peace in a world that is often so cruel.

Great Barrier Reef

How Coral Bleaching In The Great Barrier Reef Has Impacted Its Inhabitants

Climate Change has caused countless environments throughout the world to be destroyed, ecosystems to change, and species to face endangerment/extinction. The Great Barrier Reef in Australia has faced some of the greatest challenges throughout the past decade, and now, its enduring its third mass bleaching event within five years.

The last time the reef endured a mass bleaching event as intense as this one is gearing up to be, a third of all corals were killed, and fish populations declined rapidly, which also caused the specific ecosystems/species within the reef to change for the worse as well. A recent study wanted to analyze what actual effects these bleaching events have on the fish species that live among the coral reefs, as that could help us better prevent these types of things from occurring in other reefs around the world.

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The scientists behind the international study used something called “gene expression” as a tool to understand how well fish are able to handle hotter temperatures, which is an effect of coral bleaching. According to the study, gene expression is “the process where a gene is read by cell machinery and creates a product such as a protein, resulting in a physical trait.” Using this process, scientists were able to predict which fish species would specifically be the most at risk/affected by repeated heat waves that lead to bleaching. 

The study initially began in 2015 when the researchers collected liver biopsies from several species of coral reef fish after global ocean temperatures increased by 1 degree Celsius that year, however, at the time the team of scientists had no idea how different everything would look in just 5 years; in terms of coral bleaching, ocean temperatures/acidification, and climate change in general. 

It wasn’t until one year later that things took a turn for the worse. In 2016, Jodie Remmer, a lead author on the study, along with one other researcher on the project went to the Great Barrier Reef to work on a completely different project when they realized that the ocean temperature around them read as 33°C. This was absolutely shocking in the worst way possible, as 33°C was the same temperature that Remmer claims to have been used in a climate change simulation where scientists predicted what the world would look like, environment wise, by the year 2100, meaning climate change has intensified to a much more urgent level than anyone expected by 2016.

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After one week, Remmer claimed they watched entire patches of coral reef turn bone-white, as fish populations abandoned their homes in search of new resources for food. During that time, scientists collected genetic samples from a multitude of fish and coral species. What they were looking for is how these species “switched their genes on and off” based on environmental conditions. Some genes should always be on, and others should be regulated and used as a response to things like temperature stress (like during a bleaching event). 

The ability to turn these genes on and off is what gives all species the ability to maintain proper metabolic, respiratory, and immune responses to environmental changes. When this gene expression is compromised, so is the ability to survive, hence the massive decline in coral reef ecosystems/fish populations. 

“Our findings not only have implications for specific fish species, but for the whole ecosystem. So policymakers and the fishing industry should screen more species to predict which will be sensitive and which will tolerate warming waters and heatwaves. This is not a ‘one size fits all’ situation. Fish have been on the planet for more than 400 million years. Over time, they may adapt to rising temperatures or migrate to cooler waters. But, the three recent mass bleaching events are unprecedented in human history, and fish won’t have time to adapt,” Remmer stated. 

Remmer went on to say that her and her team’s goal has always been to protect the ocean and all of its inhabitants as much as possible. This new information and data isn’t very encouraging, however, it does give scientists and the government the sense of urgency they often need in order to justify a global response.