Daily Sprout: A victory for environmentalists in Rhode Island, economic concerns going into the upcoming climate conference in Poland, the buzz of innovation in the energy storage industry, and more news from around the web.

Rhode Island Victory: Several big automakers tried to stop the Ocean State from adopting California’s stricter auto emissions regulations. A federal district judge ruled against them today, giving Detroit another ding and environmentalists a boon. — NYT’s Green, Inc.

Testing, Testing: GM announced that nine companies will begin on-road testing of its fourth-generation hydrogen fuel-cell car in Berlin after more than a decade in development. — Autoblog Green

Battle of the Fuels: Collapsed oil prices have softened some of the urgent arguments for clean energy. Natural gas, which is relatively cheap and and expected to stay that way, could give renewables a run for their money. — WSJ’s Environmental Capital

Weakest Link: Invented two centuries ago, batteries have slipped behind in the high-tech world. Now energy-storage industry is a hothouse for innovation. — Newsweek

Economic Climate: Global economic turmoil will test leaders’ resolve to invest in renewable energy and slow emissions at the 14th annual UN conference on climate change in Poznan, Poland next week. — Triple Pundit

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