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Past warming shows gaps in climate knowledge -study
Reuters, 15 July 2009 - A dramatic warming of the planet 55 million years ago cannot be solely explained by a surge in carbon dioxide levels, a study shows, highlighting gaps in scientists' understanding of impacts from rapid climate change.
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Exxon to try to develop biofuel from algae
Reuters, 14 July 2009 - Exxon Mobil Corp will invest $600 million over the next five to six years on trying to developing biofuel from algae, even though the oil major has said renewables will be only a small part of global energy supply.
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