Instead of nations agreeing on greenhouse gas emissions reductions, the U.S. is pushing for each country to set its own goals.
Three of six proposed coal-export terminals in Washington and Oregon have been scrapped, and the remaining pieces of the region's coal scheme face challenges.
Tesla's all-electric Model S scored 99 out of 100 from Consumer Reports. Meanwhile, Nissan's all-electric Leaf got a top safety rating from another group.
Environmentalists sued EPA to force it to regulate oil dispersants more aggressively. With help from Big Oil attorneys, EPA won on a technicality.
A farm fired workers for seeking shelter from wildfire smoke. After a media outcry, they were offered their jobs back, but most said "hell no."
That makes two California cities that have decided in the last two months to mandate the installation of solar systems on new buildings.
Republicans on the Senate Environment Committee boycotted a vote on Gina McCarthy, basically because they really don't like the EPA.
The Silicon Valley-based electric-car pioneer defied critics by turning its first-ever profit. And it's talking to Google about adding an autopilot system.
An atmospheric scientist at the University of Washington hasn't been able to get money to study dust from coal trains, so he's turning to crowd-funding.