Loss of water from the mountains resulted in this change, according to researchers involved in the study.
'We could end up with 8 feet of sea level-rise in 2100, but we're not likely to have clear evidence for that by 2050,' say scientists.
Researchers believe that the ancient ice core may contain ice that was formed over 600,000 years ago – long before the appearance of modern humans.
Exceptions were made for the poorest countries as their access to energy is a clear benefit.
The researchers studied the evolution of the ice sheet over last 50 million years in the current study.
Industry will remain a focus of increasingly stringent decarbonisation policies as nations address their climate goals.
The hottest year in modern times experienced "multiple extreme events that weren't even possible without human influence".
Growing popularity of Greek staple generating huge volumes of food waste in the form of liquid whey, which scientists test for other uses.
Our 2017 gallery kicks off with Barack Obama shedding a tear and ends with his successor inflaming the Middle East.
Total value of reusable materials in discarded electronics was at least $55bn in 2016 - more than the GDP of most countries.
Museum of London to honour nauseating urban by-product that blocks sewers. Here are some of the worst fatbergs on camera. Warning: put down any food you have.
New Zealand has been rocked by a series of powerful earthquakes over the years.
Member nations have agreed to set quota limits.
Stunning wildlife, aerial, landscape and underwater photos in National Geographic's Nature Photographer of the Year contest.
Warming is causing wind farms to get less efficient in the amount of power they can generate and it is bound to get worse.
Wildfires, rising sea levels and droughts creating new challenges for city governments, report says.
Thousands of rabbits on an almost deserted Japanese island are struggling because of an influx in tourism.
The island formed after an undersea volcano rising a mile above seafloor erupted ferociously amid the islands of Tonga in the South Pacific.
The North Atlantic right whale could go extinct in about 20 years if no action is taken to save them.
A new review of cheetah populations in southern Africa suggests there are far fewer of the animals than previously thought.
The Thomas Fire grew by 56,000 acres on Sunday and is now just 10 percent contained, down from 15 percent the day before.
Over 50 US mayors have signed a deal to combat climate change in a similar fashion to the Paris Climate agreement.
Heavy snow led to travel disruptions, traffic accidents and school closures – as well as snowman building, sledging and a flurry of pretty pictures
Mount Hope replaces Mount Jackson as the UK's tallest mountain as per the latest measurements by the British Antarctic Survey (BAS).
Newly discovered Antarctic microbes need only a few gasses to live. They literally eat the air around them.
In Kenya, the Local Ocean Trust has created a "hospital" that treats turtles that have swallowed plastic waste. Sea turtles often confuse plastic for food.
A National Geographic photographer captured a dying polar bear struggling to find food. He shared it on social media to bring attention to the effects of climate change.
Scientists have recorded the Earth's hum, confirming the vibrational signal, which was first detected in 1998, is indeed real.
At least four major southern California wildfires have prompted the evacuation of about 200,000 people and destroyed hundreds of homes and buildings.
Video captures animal hero pulling over on busy highway to rescue animal trapped by blaze engulfing large parts of US state.