California is looking into ways to reduce the use of gas-powered lawn and gardening equipment because they will soon surpass cars as the biggest polluters in the state.
Vegetables were rationed at supermarkets in the U.K. due to poor weather conditions in Europe. Here, lettuce, broccoli and zucchini were rationed at a Tesco store in London.
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A refinery in Anacortes, Wash. In 2016, voters in Washington state rejected an initiative that would have taxed carbon emissions from fossil fuels such as coal and gasoline.
Ted S. Warren/AP
Almost 200,000 people were ordered to evacuate after a hole in the emergency spillway in Northern California's Oroville Dam threatened to flood the surrounding area. Climate change could be a factor of extreme flooding in California.
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More than 10 wildfires burned over 200,000 acres in Southern California in October 2003, many of them started by humans. This satellite image shows strong winds carrying smoke over the Pacific.
MODIS Rapid Response Team/NASA
Some environmental justice advocates say California's cap-and-trade program hasn't done anything to clean up the air in low-income communities like Wilmington, where refineries are located near residential neighborhoods.
(Top) Police make arrests as they move through the Oceti Sakowin camp. (Bottom) The police moved steadily and slowly through the camp, accompanied by Humvees and maintaining a perimeter of the cleared area.
Angus Mordant for NPR