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May 3 News: Chemicals From Marcellus Shale Fracking Could Reach Surface In ‘Just A Few Years,’ Study Finds

A new study has raised fresh concerns about the safety of gas drilling in the Marcellus Shale, concluding that fracking chemicals injected into the ground could migrate toward drinking water supplies far more quickly than experts have previously predicted. [ProPublica]

Scientific models are failing to accurately predict the impact of global warming on plants, says a new report. [BBC]

Tariffs enforce WTO rules and protect U.S. solar manufacturers, but could also drive up solar costs or touch off a U.S.-China trade war. Center for American Progress China energy and policy analyst Melanie Hart and Grape Solar founder Ocean Yuan debated the wisdom of tariffs at the GTM solar summit. [Greentech Media]

If the mainstream media won’t connect the dots, then it’s up to the rest of us to try. This Saturday, 350.org’s global network of volunteers, activists, and organizations are hosting over 1,000 events in more than 100 countries to “connect the dots” between extreme weather and climate change. [Huffington Post]

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South Korea’s Parliament approved Wednesday a long-delayed bill to start trading carbon-dioxide emissions in 2015, paving the way for Korea to become one of the first Asian countries to implement a nationwide cap-and-trade system. [Wall Street Journal]

A new paper in the prestigious science journal Nature assesses one of the big questions in ecology today: How do species extinctions rack up compared to other global change issues like global warming, ozone holes, acid rain, and nutrient pollution (overfertilization)? [Mother Jones]

Another long, stupefyingly hot summer is looming for Japan just as it shuts down its last operating nuclear power reactor, worsening a squeeze on electricity and adding urgency to calls for a green energy revolution. [Washington Post]