The findings were published in the Proceedings of the National Academy of Sciences.
Further evidence of the emissions-warming link has been provided in equations that also show the carbon emitted so far will stay intact for centuries.
The loud bangs were also heard in New York State thousands of miles across the Atlantic Ocean.
With loss of sea ice, polar bears losing out on habitat vital for its food, mating and raising of cubs.
Scientists discover carbon dating of mastodon fossils was wrong by thousands of years.
French scientist creates 'wind tree' to compete with 'monstrous' wind turbines.
CCTV footage shows two men getting out of their car seconds before it fell into a sinkhole.
Climate delegates have met in Peru to discuss a global pact on cutting emissions.
Read the mysterious Japanese folk tale here
A brain-computer interface has used the brain activity of monkeys to navigate wheelchairs, if they receive a grape.
The Great Wall of China: The Hidden Story – Secret History shed new light on structure.
Depiction of unknown god found in ancient sanctuary in Turkey.
Book describes what civil war smelt like to 23-year-old nurse.
China mastered high-temperature technology thousands of years before anyone else.
A robot that can scale the faces of steep cliffs might one day help explore Mars and find signs of life.
The scientist won the medal with Francis Crick for discovering the double helix structure of DNA in 1962.
Humans spotted on Mars in 1979?
Local residents of Portugal were amused by a mysterious sticky substance that fell from the sky and comes alive under ultraviolet rays.
23,000-year-old statue of large-breasted big-bottomed woman found in Amiens.
Camera traps set up in the Chernobyl Exclusion Zone have photographed many species of wildlife.
Brown bears seen in area of Chernobyl disaster for first time in 100 years.
Study shows world's oldest computer based on Babylonian maths, not Greek trigonometry.
At a time when irreversible climate change seems a likely prospect because of man, the movie could have done without dwelling on the 'man as conqueror' theme.
Volcano on southern Kyushu Island sends smoke and ashes shooting 1km into the sky.
Report highlights problems of high-turnover electronics worsened by Black Friday shopping.
Seeing the rising waters, UNRWA has shut down its school in Gaza City, which is attended by 65,000 students.
Scientists finally name Earth's most abundant mineral discovered in meteorite.
Matthew Watson said we must weigh up what would happen if we do nothing to limit global warming.
DNA able to survive on outer shell of rocket re-entering Earth's atmosphere.
An invisible 'force field' has been discovered 7,200 miles above Earth, protecting the planet from "killer electrons".