Nasa and NOAA are keepers of the world's temperature data and according to them, they independently produce and record the planet's surface temperatures.
Nasa satellite images show the contrast between the desert sand and flaky snow in breathtaking images from space.
Greenhouse gasses can wreak havoc in an atmosphere and Venus is an extreme example.
The search for survivors and bodies after a mudslide engulfed homes in Santa Barbara County enters its third day. Seventeen people confirmed dead, with five still unaccounted for.
The UK government has announced its latest pledge in the war against plastic. But where do the plastic bottles we recycle end up?
Theresa May has pledged to eradicate avoidable plastic waste by 2042, as part of a new environmental agenda.
Hundreds of rescue workers and volunteers are continuing the gruelling work of hunting for survivors and digging up bodies in the sea of mud and wreckage in Santa Barbara County.
The world is getting warmer each year and humans are to blame.
Nasa's images shared on Instagram offer a bird's eye view of what is happening in some parts of the country.
The death toll from the mudslides that swept through Santa Barbara county is expected to rise as rescue workers search for an unknown number people still unaccounted for.
Warm ocean waters and rising CO2 levels are likely to disturb the food chain.
Dutch start-up Lightyear has designed a solar-powered car prototype which can be driven for months without charging.
Around 13,000 tourists have become stranded by heavy snow in Zermatt, at the foot of Switzerland's famous Matterhorn.
Sand dunes in the Algerian town of Ain Sefra were blanketed by a 16-inch thick layer of snow. This was only the third snowfall to be recorded in the town.
More than 99% of green sea turtles coming from the northern Great Barrier Reef are females, study finds.