US Special Envoy on climate John Kerry says President Trump's Paris pull-out endangered lives.
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Satellite imagery is being used to count elephants in a breakthrough that could aid conservation.
Read MoreRe-joining the Paris climate pact is a symbolic and practical first step for the Biden White House.
Read MoreAn issue with hydraulic systems led to the early shutdown of a test for Nasa's new "megarocket".
Read MoreThe cupped clap of a butterfly's wings may be the key to their flying abilities and their survival.
Read MoreScientists, using a wind tunnel and high-speed cameras, have captured the butterfly's flying skill.
Read MoreThe UK's push to secure a deal over fossil fuels is being undercut by a decision to allow a new coal mine, MPs warn.
Read MoreThe four main engines for Nasa's new "megarocket" are to be fired in unison for the first time.
Read MoreClimate change: Cumbria coal mine "risks making Britain a laughing stock"
Read MoreThe years between 2011 and 2020 were the hottest on record, and 2020 was among the warmest of all.
Read MoreThe electric predators work in groups to herd and "zap" their prey in unison, scientists shocked to discover.
Read MorePollinators risk running short of food as wildflowers disappear in a "green desert", experts warn.
Read MoreBut researchers warn there is still a risk of catching and passing the virus on to others again.
Read MoreAn alliance of food experts want more public funds to go towards Wales-grown produce.
Read MoreThe life-sized picture of a wild pig found in a remote cave is thought to be 45,000 years old.
Read MoreAn amateur photographer’s aerial photos are gaining attention for this little known "natural wonder".
Read MoreA new clean air law could see burning house coal banned in Wales, and stricter rules on using wood fires.
Read MoreAn investigation is launched after the marine mammal was found with the president's name on its body.
Read MoreUS greenhouse gas emissions tumbled below their 1990 level last year, because of Covid-19 shutdowns.
Read MoreHarbour porpoises exposed to PCBs had shrunken testicles, suggesting sperm and fertility effects.
Read MoreHopes that Africa could "leapfrog" fossil fuels and move to renewables are not being realised.
Read MoreThe PM says investment is needed to protect marine life, forests and sustainable food production.
Read MoreIn 2018, the EU and UK imposed an almost-total ban because of the serious damage it could cause.
Read MoreHe wants businesses to do more to protect the planet as he marks 50 years of environmental campaigning.
Read MoreThe NHS is carrying out the biggest vaccination campaign in its history - what safety checks were made?
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