Climate change in Oregon encompasses the effects of climate change, attributed to man-made increases in atmospheric carbon dioxide, in the U.S. state of Oregon. The United States Environmental Protection Agency reports: "Oregon's climate is changing. Over the past century, most of the state has warmed about two degrees (F). Snowpack is melting earlier in the year, and the flow of meltwater into streams during summer is declining. In the coming decades, coastal waters will become more acidic, streams will be warmer, wildfires may be more common, and some rangelands may convert to desert".