Earth loses 13 billion trees per year but regains less than half.
If this happens, temperatures across Europe and the Northern Hemisphere generally could drop.
Prince William has launched the Earthshot Prize in a bid to find at least 50 solutions to the world's greatest problems by 2030.
Activists are placing the blame on climate change, but the Australian government says there is no correlation between the country's emissions output and an increased fire risk.
The climate activist told the BBC that discussing climate change with Trump probably would not have been worthwhile.
Svante Thunberg told the BBC's Today programme that his daughter has to deal with his criticism "incredibly well."
"The climate is changing..." said Xavier Fettweis, a climatologist at the University of Liège in Belgium.
TOXMAP, an interactive map that allowed users to find polluted areas such as factories and toxic waste cleanups, has been shut down by the National Library of Medicine in a move some observers connect to the White House's rollbacks of environmental policies.
Synevyr National Nature Park in southwest Ukraine have said bears in their care are struggling to hibernate during an abnormally warm December.
Alexandria Ocasio-Cortez railed against the idea of the United States as an "advanced society," saying that we've evolved into a fascist state that only benefits its richest members.
Dire projections form part of a "best-case scenario."
Scott Morrison told reporters on Monday that he would "do the right job for Australians and put them first" as bushfires raged on.
"But why is it OK for windmills to destroy the bird population?" Trump said.
"The precious Amazon is teetering on the edge of functional destruction and, with it, so are we," the editors of a leading scientific journal wrote.
A heatwave across Australia has exacerbated bush fires and South Australia is enduring a fourth successive day of record temperatures.
Presidential candidate Bernie Sanders called for the prosecution of fossil fuel executives after claims in an article that ExxonMobil projected no reduction in carbon emissions by 2040.
The 330-foot-long structure was created with boulders from a river over a mile away.
"Avatar: The Way of Water" won't be released in theaters until December 2021, but director James Cameron has already completed shooting for the motion-capture in its sequel, "The Seed Bearer."
The latest known fossils belonging to extinct human species dated to between 117,000 and 108,000 ago.
A right wing evangelical pastor has claimed that teenage climate change activist Greta Thunberg is "psychologically disturbed" while suggesting she could be possessed by a "demonic spirit."
Some commenters on social media criticized her for the remarks, saying that they could be interpreted as calling for violence against politicians. However, she refuted these claims in a tweet.
From closing hundreds of dirty power plants to standing with climate activists in Virginia, I am already working to ensure America's clean energy future.
The president targeted Greta Thunberg on Twitter after she won Time's Person of the Year award for her climate change activism.
Swedish climate activist joins 15 other young campaigners urging the two countries to scale back fossil fuel production.
Wetlands are the biggest natural source of methane in the world.
The client list of presidential candidate Pete Buttigieg's early consultancy work has been released and it includes several jobs related to efforts at increasing energy efficiency.
With a focus on climate change, the United Nations celebrates this year's Human Rights Day by focusing on children and young adults.