There’s one reason not to completely freak out about Trump’s effort to reverse Obama-era climate cha

The Trump administration's efforts to reverse Obama-era policies on climate change face limits.  Advances in US energy markets have sharply lowered production costs associated with cleaner energy sources such as natural gas, wind and solar. US carbon dioxide emissions in 2016 were 14% below their 2005 levels. A carbon tax might be the most effective way to combat global warming, but it's not in the cards. A new report from the US Government Accountability Office (GAO), a top government...