The latest stories from the Science & Environment section of the BBC News web site.
UN climate officials have reacted sharply to criticism that the talks to land a new global deal are going at a "snail's pace".
Lisa Pathfinder is a fundamental physics experiment that will test the technology needed to detect gravitational waves - what are sometimes referred to as ripples in the curvature of space-time.
Adults who lack basic science and maths skills risk being "bamboozled" and making bad decisions, according to a leading scientist.
Energy giant EDF has admitted that construction of Britain's first new nuclear power plant in decades has been delayed.
A new report says there are three trillion trees on Earth, eight times as many as the previous best estimate.
Rich nations at UN climate talks are said to be edging towards a compromise on the thorny issue of loss and damage.
An autonomous starfish-killing robot will be ready for field trials on the Great Barrier Reef this month, researchers say.
This year's El Nino weather phenomenon could be one of the strongest on record according to the World Meteorological Organization.
Scientists reveal the secrets behind the trees that can resist wildfires.
Researchers develop a mathematical model that can help determine the surveillance effort required to detect the arrival of costly invasive pathogens.
Patches of Kielder forest are being turned into a wild laboratories, to work out the environmental triggers for common diseases.
Researchers say that global efforts to cut carbon are far short of what's needed to avert dangerous climate change.
An overgrown sheep dubbed Chris, found wandering near Australia's capital, sets an unofficial world record for the heaviest fleece.
A message in a bottle that washed up more than 108 years after it was thrown into the sea may be the world's oldest, a marine association says.
Trophy hunting has been the subject of much media attention, but is a blanket ban really the answer?
Unless something is done to stem the flow of waste to the oceans, virtually every seabird will be ingesting plastic debris by 2050, say scientists.
The Buddhist country of Bhutan has won plaudits for its approach to tackling climate change, says Matt McGrath.
Scientists develop a way to make ice cream smoother and less likely to melt so quickly on a hot summer day.
Neurologist and author Oliver Sacks dies of cancer aged 82
Scientists at Newcastle University are going in search of floods, trying to learn what causes them so they can prevent future flash flooding.
A team of Nasa recruits begins living near a barren volcano in Hawaii to simulate what life would be like on Mars.
US and Russia at odds over the Arctic
Turks and Caicos Islands debates marine mammal park
A life without mental images
Pallab Ghosh assesses the evidence for the decision to extend the cull of badgers to control TB in cattle.