"As in the oceans, carbon dioxide from the atmosphere could throw off water chemistry in large freshwater bodies like the Great Lakes, putting the food web at risk."

"PARIS — Canada has endorsed a call from small island nations to hold global warming to no more than 1.5 degrees Celsius above pre-industrial levels, putting Ottawa out of step with the United States, which has maintained a 2 C target."

"To be a climate change skeptic in Paris this week means facing heavy odds."

"LE BOURGET, France -- President Obama's top advisers have arrived in force here today to begin a final push toward a global climate accord, telling whoever will listen that U.S. carbon emissions reductions are here to stay."

"Democratic presidential hopeful Bernie Sanders released a climate and energy plan on Monday, calling for the U.S. to reduce its greenhouse gas emissions 80 percent by 2050."

"The cold hard numbers of science haven't spurred the world to curb runaway global warming. So as climate negotiators struggle in Paris, some scientists who appealed to the rational brain are enlisting what many would consider a higher power: the majesty of faith."

"PARIS - Ten African countries have committed to restore 31 million hectares of degraded and deforested land, under a new push to make 100 million hectares productive again by 2030."

"About 600 scientists and engineers, including former employees of the National Oceanic and Atmospheric Administration (NOAA), have signed on to letters urging the head of that agency, Kathryn Sullivan, to push back against political interference in science."

"As world leaders grapple with how to cut global emissions of carbon dioxide, diplomats in Paris are recording progress in combating other pollutants that scientists believe are contributing powerfully to rising temperatures."

Major parts of the coastal United States are in the same boat as vulnerable, low-lying nations and islands when it comes to climate-driven sea level rise and extreme weather, says Thomas Lovejoy, a noted ecologist.