Mars-like ice rediscovered in Hawaii volcano, but might not last
Ice was mysteriously found below the crater of Hawaii’s Mauna Kea 50 years ago, but was soon forgotten. Alice Klein joins a search for clues to ice on Mars
Climate change could destroy wild relatives of cereals by 2070
With their ability to adapt to climate change outstripped by the rate of global warming, the wild relatives of many grasses may be doomed
Paris climate deal may come into force by the end of 2016
More than 55 countries have ratified the UN’s climate agreement, meeting the first of two thresholds needed for it to come into force
Arctic ice melt is killing birds and will leave caribou stranded
The trend for more sea ice to melt sooner spells trouble for Arctic ecosystems on an unprecedented scale – and it’s not just polar bears that are in peril
Arctic summer sea ice melts to second lowest level ever recorded
The melt follows last year’s record low of winter ice that set stage for the summer low. Long term consequences for ecosystems could be dire
UK approves controversial Hinkley C nuclear power plant
A controversial £18 billion nuclear power plant has been given the government go-ahead after much delay and criticism of its high costs and delays
More than half of UK species in decline – some may soon vanish
A new report paints a gloomy picture and blames intensive farming and climate change for an ongoing devastation of wildlife across the UK
Oil pipeline construction halted after Native American protests
The conduit for oil has sparked protests and a lawsuit led by the Standing Rock Sioux Tribe, and now the US has halted construction on a section of the pipeline
Oceans given boost as nations agree to protect a third worldwide
But the deal is not legally binding, and opposition from some big countries to the idea could make it largely symbolic
North Korea’s largest nuclear test still lacks missile capacity
The nation's fifth atomic test has been revealed by a magnitude 5 earthquake, the strongest to date, but the country may still be far from the ability to mount a strike