Oil spill can have devastating effect on wildlife and shoreline , says Michael Brune . He says we ' ve been assured that the environment is completely safe . Brune : Workers killed , and spill could be nation 's worst environmental disaster . He says U.S. has moratorium on new drilling , plan to wean off fossil fuels .
Gulf spill can have devastating effect on wildlife and shoreline , says Michael Brune . He says we 've been assured that oil drilling is completely safe . Brune : Workers killed , and spill could be nation 's worst environmental disaster . He says U.S. needs moratorium on new drilling , plan to wean off fossil fuels .