The latest stories from the Science & Environment section of the BBC News web site.
Updated: 2 hours 14 min ago
Emissions of nitrous oxide (N2O) from agriculture in some locations are underestimated by 40% according to new research.
A hunter paid a $54,000 (£35,000) bribe to wildlife guides to kill an "iconic" lion in Zimbabwe, a conservationist tells the BBC.
A UK citizen science project to study when and where different orchids bloom has already revealed 200 new flowering locations for particular species.
Project approaches the end of the mechanical build
It's the dwarf planet that keeps on giving. Now Newsround has compiled all the pictures of Pluto so far into one manageable minute.
Hard work saves Spanish lynx from extinction
Pluto would appear to have glaciers of nitrogen ice, the latest pictures from the New Horizons probe suggest.
Scientists have developed what they're describing as a bomb proof material that could be a major step forward in aircraft security.
A new system that contains the explosion of bombs smuggled onto aircraft has been successfully tested.
Engineers and physicists have discovered a property of silicon which could aid the development of faster computers.
Searching for alien life with a telescope down under
The number of single-use plastic bags handed out by UK supermarkets increases for the fifth year, rising to 8.5 billion.
Scientists find the first ever four-legged snake, which lived at the time of the dinosaurs and probably dug burrows.
The energy and climate change secretary faced accusations of "grotesque hypocrisy" as she outlined the government's plan to tackle climate change.
Trying to predict the South Asian monsoon by studying the ocean
The government has temporarily lifted a ban on neonicotinoid pesticides in certain parts of the country.
A 4,000 year-old Bronze Age skeleton, believed to be that of a child, is unearthed by archaeologists at a dig in Wiltshire.
A haul of planets from Nasa's Kepler telescope includes a world sharing many characteristics with Earth.
The butterfly that feeds on rotting flesh
Is it safer to cook rice in a coffee percolator?