The Guardian reports: A new study shows that oxygen levels in oceans have fallen 2% in 50 years due to climate change, which threatens future fish stocks and the habitat and behaviour of marine life. Related: Amitav Ghosh warns that the Bay of Bengal’s depleted fish stocks and huge dead zone signal a tipping point.
climate change impacts
Newsner reports: During a National Geographic-commissioned photo expedition to the Arctic, photographer James Balog and his team were examining a glacier when their cameras caught something out of the ordinary. This rare footage has gone on record as the largest glacier calving event ever captured on film, and presents a dire warning of things to come.
The planet is getting hotter, leaving people hungry and fuelling wars around the world and you want to do something about it. But with a green movement to cater for every age, location, and type of plastic recycling, how to turn your enthusiasm into action? Maeve Shearlaw’s tips for getting started as a climate activist.
Yale Environment 360 reports: Last year marked the first time in several million years that atmospheric concentrations of CO2 passed 400 parts per million. Frighteningly, this modern rise of CO2 is also accelerating at an unusual rate. By looking at the Earth’s climate history, scientists are getting a sobering picture of where we are headed.
Manipadma Jena reports: An ActionAid report released last month warns of the devastating and increasing impact of climate change on women in South Asia, stating how “Young females from neighbouring Nepal and Bangladesh who migrate to India as well as internal migrants from rural areas moving to cities are increasingly vulnerable to abuse and trafficking.”
Common Dreams reports: For the third year in a row, the world experienced its warmest year ever recorded. In 2016, a total of 22 nations set all-time records for their hottest ever temperatures. This breaks the record of eighteen all-time heat records in 2010 for the greatest number of such records set in one year.
Brian Kahn writes: This year is likely to remembered as a turning point for climate change, with world leaders agreeing to move toward a clean energy future. It’s clear 2016 was a year where planetary peril and human hope stood out in stark contrast. Here are the 10 most important climate milestones of the year.
More fish species on the east coast, especially in the waters off Odisha and West Bengal, are highly vulnerable to climate change, according to a first of its kind assessment by the Central Marine Fisheries Research Institute (CMFRI). That vulnerability stems not only from changes in climate but also from fishing pressure and lower productivity.
Sophie Lewis writes: We often hear people saying it’s impossible to attribute any single weather event to climate change. While this may have been true in the 1990s, the science of linking extreme events to global warming has advanced significantly since then. However, how we communicate these findings has not kept pace with the science.
John Foran writes: Among 21st-century movements for radical social change, those that are most likely to succeed will feature some combination of 1) stronger social movements and political cultures of opposition and creation, and 2) new kinds of parties, joined in 3) some new kind of networked structure, and 4) operating locally, nationally, and globally.
The National Geographic reports: Arunabha Ghosh, chief executive officer of India’s Council on Energy, Environment and Water, an environmental group, estimated that natural disasters exacerbated by climate change cost the Indian government roughly $30 billion (US dollars) between 2010 and 2015. That number will likely rise along with the global temperature, according to his research.
The Washington Post reports: In a massive new study published in the influential journal Nature, more than 50 authors from around the world document a so-called climate system “feedback” that, they say, could make global warming considerably worse over the coming decades. That feedback involves the planet’s soils, which are a massive repository of carbon.
Pranav Prakash quotes a journalist from The Hindu: “What passes for environmental journalism in India is often bourgeoisie environmentalism, unfortunately. Air pollution in cities matter, while 300 million Indians who cook in crammed, dark, smoke-filled kitchens don’t matter. Ultimately, it’s a question of representation. Whose concerns are addressed or aired depends on who is speaking.”
Brian Kahn writes: Climate change has entered a new phase, according to the UN World Meteorological Organization. Concentrations of carbon dioxide “surged again to new records in 2016,” and the WMO predicts that the annual average for CO2 would remain above 400 parts per million, 44 percent higher than before the Industrial Revolution, for generations.
Leo Hickman writes: Oscar-winning actor Leonardo DiCaprio has spent the past three years asking a wide variety of people around the world about climate change. His collection of interviews in the film–ranging from Barack Obama and the Pope through to Elon Musk and Sunita Narain– cover the science, impacts, vested interests, politics and possible solutions.
“The Great Barrier Reef of Australia passed away in 2016 after a long illness. It was 25 million years old.” So begins Rowan Jacobsen’s moving obituary for the world’s largest living structure. With 2,900 individual reefs and 1,050 islands, it’s larger than the United Kingdom, and it contained more biodiversity than all of Europe combined.
According to an authoritative new report, some of the heat that accumulates in oceans over the years can get released back to the atmosphere. In a nutshell, the oceans were behaving less like heat sponges over the last year or more, instead releasing heat to the surface, and hence the spike in average global temperatures.
Climate Central reports: In the centuries to come, history books will likely look back on September 2016 as a major milestone for the world’s climate. 2016 will be the year that carbon dioxide officially passed the symbolic 400 parts per million mark, never to return below it in our lifetimes, according to scientists at NASA.
Eric Holthaus writes: The latest comic from xkcd, the internet’s most famous science-focused webcomic, zips through 22,000 years of Earth’s climate history, juxtaposed with key moments in the history of civilization. Seeing it, you’ll probably come to an inescapable conclusion: Nothing like this has ever happened, and it’s about to get a whole lot worse.
The Guardian reports: The oceans have already sucked up an enormous amount of heat due to escalating greenhouse gas emissions, affecting marine species from microbes to whales, according to a report involving the work of 80 scientists from a dozen countries. The profound changes underway in the oceans are starting to impact people, it states.