The Tesla CEO said he had done "all (he) can" to convince Trump to uphold the Paris accord.
Anne Hidalgo promises that the world's cities remain committed to tackling climate change.
"Do I think that man has some impact? Yeah, of course. Can man change the entire universe? No."
NOAA experts predict coral reefs in Florida, Hawaii and the Caribbean will be heavily impacted by global warming effects as soon as this summer.
Robust model shows for every one degree Celsius warming, 4 million square kilometers would be lost.
A warmer planet may not be able to return to the balance we once enjoyed.
State policies and market forces will continue the greening of the energy supply in states like California, Oregon, New Mexico and beyond.
Lawyers for the Sierra Club asked the EPA to check whether Pruitt violated policy by saying, "I would not agree that [carbon is] a primary contributor to the global warming that we see."
The report came a day after Donald Trump issued new measures to roll back the Obama administration's anti–climate change policies.
The U.S. deficit will likely be addressed first because the bond market will demand it.
The report also suggests building huge ventilation tunnels to create wind which will lift the smog from the city
The Planetary Society and its famous CEO urge Trump to set his sights on Mars, increase NASA's budget, support the commercial space industry and more.
Despite the early and clear-eyed view of the risks of global warming, Shell invested billions of dollars in highly polluting tar sand operations and on exploration in the Arctic.
A group of Republicans who don't currently hold public office released a report in which they advocated a tax on carbon emissions.