Nearly a third of all freshwater fish species are threatened by extinction, according to a new report released by 16 conservation groups on Tuesday. Migratory populations have declined by more than three-quarters since the 1970s. “The World’s Forgotten Fishes” says that 80 freshwater species — which make up more than half of all the world’s species — have already been declared extinct, with 16 disappearing in 2020 alone.
The United States is back in the Paris climate accord, just 107 days after it left. While Friday’s return is heavily symbolic, world leaders say they expect America to prove its seriousness after four years of being pretty much absent. They are especially anticipating an announcement from the U.S. in coming months on its goal for cutting emissions of heat-trapping gases by 2030.
Fifty-one billion and zero – the two numbers Bill Gates says you need to know about climate. Solving climate change would be “the most amazing thing humanity has ever done”, says the billionaire founder of Microsoft. By comparison, ending the pandemic is “very, very easy”, he claims. Mr Gates’s new book, How to Avoid a Climate Disaster, is a guide to tackling global warming.
A vast expanse of Amazon rainforest seven times larger than Greater London was destroyed over the last year as deforestation surged to a 12-year high under Brazil’s far-right president Jair Bolsonaro. Figures released by the Brazilian space institute, Inpe, on Monday showed at least 11,088 sq km of rainforest was razed between August 2019 and July this year – the highest figure since 2008.
La Niña climate event is under way, heralding a colder and stormier winter than usual across the northern hemisphere, but 2020 remains likely to be one of the warmest years on record. The World Meteorological Organization (WMO) has declared La Niña event – a cooling of surface ocean water along the Pacific coast of the South American tropics – to help governments and humanitarian agencies plan for extreme weather events around the world.
“This world is threatened. We really saw how the ice is disappearing,” said Markus Rex, leader of the largest-ever Arctic expedition, at a press conference Monday. Researchers involved in the expedition called MOSAiC — Multidisciplinary drifting Observatory for the Study of Arctic Climate — returned on the German vessel, the Polarstern, which spent more than a year at sea.
This September was the hottest on record across the globe, scientists have found. Surface temperatures worldwide were 0.05C higher than 2019, making it the hottest September since records began, according to the EU Copernicus Climate Change Service (C3S). The overall increase saw warmer temperatures in the Siberian Arctic, where this year the ice extent melted faster than normal due to forest fires in the wider region.
At least 14m tonnes of plastic pieces less than 5mm wide are likely sitting at the bottom of the world’s oceans, according to an estimate based on new research. Analysis of ocean sediments from as deep as 3km suggests there could be more than 30 times as much plastic at the bottom of the world’s ocean than there is floating at the surface.
Arctic sea ice has melted to its second lowest level on record as a result of heat waves and forest fires, scientists have said. On 15 September, ice in the Arctic Ocean measured 1.44 million square miles (3.74 million square kilometres), the US National Snow and Ice Data Centre (NSIDC) said. This is the second lowest summer melt since satellite records began in 1979.
After multiple California officials confronted President Donald Trump Monday about ignoring climate change’s role in the raging west coast wildfires, the president dismissed their concerns and raised skepticism about the “science” that has concluded the Earth is warming. “It’ll start getting cooler,” Trump said in response to California Natural Resource Secretary Wade Crawfoot, who pressed the president to acknowledge the fact untamed vegetation is not solely responsible for the wildfires in the Golden State.