"The climate deal reached in Paris is "the best chance we have to save the one planet we have", US President Barack Obama has said.
He said it could be a "turning point" for the world to take on the challenge of a low-carbon future.
China, the world's biggest polluter, also hailed the deal. But some campaigners said it did not go far enough to protect the planet.
The Paris pact aims to curb global warming to less than 2C (3.6F)
Nearly 200 countries took part in tense negotiations in the French capital over two weeks, striking the first deal to commit all nations to cut emissions.
The agreement - which is partly legally binding and partly voluntary - will come into being in 2020".

(Posted by +rasha kamel​)

"Northern spotted owl populations are declining in all parts of their range in the Pacific Northwest, according to research based on data from 11 study areas across Washington, Oregon and northern California. A rangewide decline of nearly 4 percent per year was estimated from 1985 to 2013".

(Posted by +rasha kamel​)

"Many of the previous studies on global species diversity are inaccurate. These are the conclusions of an international research group that carried out a long-term study on biodiversity in the subtropical forests of China".

(Posted by +rasha kamel​)

"Scientists are studying past changes in sea level in order to make accurate future predictions of this consequence of climate change, and they're looking down to Earth's core to do so. 'In order to fully understand the sea-level change that has occurred in the past century, we need to understand the dynamics of the flow in Earth's core' says one of the researchers".

(Posted by +rasha kamel​)

"Pollution of Earth’s atmosphere by ozone-depleting substances, such as chlorine or bromine from halons and chlorofluorocarbons (CFCs), decreased over the past years, new research shows. Ozone is, however, not only influenced by these substances, but acts as a greenhouse gas itself: Its impact on climate near the ground is highest in the tropopause region, the transition zone between stratosphere and troposphere at 7 to 17 kilometers altitude".

(Posted by +rasha kamel​)

"Organisers of climate talks in Paris have released details of a proposed landmark deal to curb climate change.
France's Foreign Minister Laurent Fabius said the final draft of the deal was fair, "legally binding" and would limit warming to "well below 2C".
The final draft agreement has been presented to international delegates in Paris after two weeks of talks.
If endorsed, the global climate pact would represent "a historic turning point", said Mr Fabius.
"It confirms our key objective, the objective which is vital, that of continuing to have a mean temperature well below two degrees and to endeavour to limit that increase to one point five degrees," he told countries.
French President Francois Hollande, who joined the meeting on Saturday, called the proposal unprecedented".

(Posted by +rasha kamel​)

"Only a fifth of the nine million species of animal, plant and fungus thought to occur on earth is known. Dragonflies (which include damselflies) are seen as well-known. Nonetheless researchers describe 60 newly discovered species, the greatest number of new dragonflies in about a century".

(Posted by +rasha kamel​)

"Tropical groundwater may prove to be a climate-resilient source of freshwater in the tropics as intense rainfall favors the replenishment of these resources, according to a new study".

(Posted by +rasha kamel​)

"Negotiators at the Paris summit aim to wrap up a global agreement to curb climate change on Saturday - a day later than expected.
"We are nearly there. I'm optimistic," said French Foreign Minister Laurent Fabius, who is chairing the summit.
Efforts to forge a deal faltered on Friday, forcing the talks to overrun.
UN Secretary General Ban Ki-moon said the negotiations were the "most complicated, most difficult, but, most important for humanity".
Mr Fabius told reporters in Paris that he would present a new version of the draft text on Saturday morning at 0800 GMT, which he was "sure" would be approved and "a big step forward for humanity as a whole".
"We are almost at the end of the road and I am optimistic," he added".

(Posted by +rasha kamel​)

"An unprecedented glimpse into the past of a lake with explosive biodiversity has been gained by recent research that unearthed a 380-meter-deep time capsule from Lake Malawi".

(Posted by +rasha kamel​)