"Cars hit a new fuel economy record in 2015 while outperforming mandated greenhouse gas emissions limits, the Environmental Protection Agency (EPA) said."

"The German cabinet has approved a draft law banning cultivation of crops with genetically modified organisms (GMOs), government sources told Reuters on Wednesday."

"The Tesla chief executive, Elon Musk, has unveiled new energy products aimed at illustrating the benefits of combining his firm, which makes electric cars and batteries, with solar installer SolarCity."

"The controversy over genetically modified crops has long focused on largely unsubstantiated fears that they are unsafe to eat. But an extensive examination by The New York Times indicates that the debate has missed a more basic problem — genetic modification in the United States and Canada has not accelerated increases in crop yields or led to an overall reduction in the use of chemical pesticides."

"Some specially trained dogs are helping humans curb themselves. A company that has trained dogs to recognize the smell of human fecal bacteria has been sniffing out sources of water pollution nationwide, discovering broken sewer pipes, leaking septic tanks and illegal sewage discharges, to the delight of environmental groups and government agencies."

"Tesla Motors said on Wednesday that it would equip all of its new vehicles with technology that enables fully autonomous driving, but would not activate the system until it undergoes further testing."

"The U.S. Air Force is spending nearly $1 billion to build a radar installation that will help keep astronauts and satellites safe by tracking pieces of space junk as small as a baseball. That is, if global warming doesn't get in the way. The Space Fence is being constructed on a tiny atoll in the Marshall Islands that scientists say could be regularly swamped by rising seas within a couple of decades as a result of climate change."

"Negotiators from more than 170 countries on Saturday reached a legally binding accord to counter climate change by cutting the worldwide use of a powerful planet-warming chemical used in air-conditioners and refrigerators."