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Methane Feedback Loop in Lakes Discovered 
Researchers studying methane emissions from freshwater lakes have come to a disturbing conclusion: changes in plant growth caused by a warming climate can be expected to feed increased methane emissions from what is already one of the world’s largest sources, (lakes already contribute about 16% of natural atmospheric methane). The BBC explores the issue: https://www.bbc.com/news/science-environment-43990403

Carbon Dioxide Continues Steep Climb 
Earth’s atmospheric carbon dioxide concentrations have reached levels not seen for 800,000 years, yet continue their rapid and steady increase, year after year. USA Today has the story: https://www.usatoday.com/story/news/2018/05/04/global-warming-carbon-dioxide-levels-continue-soar/581270002/

U.S. Cities Losing Trees 
Even as research increasingly shows the importance of trees to the urban environment, American cities are shedding their arboreal denizens. Factors feeding the decline include development, as well as disease, storm and insect damage, and other climate-change related causes. Scientific American expounds: https://www.scientificamerican.com/article/u-s-cities-lose-tree-cover-just-when-they-need-it-most/

WH, EPA Submerge Chemical Study 
A report on the results of a federal study on toxic chemical contamination at previous industrial, military and other sites was headed off by the administration. The study remains unpublished, apparently because the administration is unprepared to deal with its consequences. Politico has the story: https://www.politico.com/story/2018/05/14/emails-white-house-interfered-with-science-study-536950