Agence France-Presse: EU Commission chief Jose Manuel Barroso urged European leaders on Tuesday, the eve of an EU summit, not to use the financial crisis as an excuse to downgrade their commitments to tackling climate change. “This is not a luxury we now have to forego,” in economically troubled times, Barroso told reporters in Brussels. “Climate change does not disappear because of the financial crisis. Tackling climate change is central to Europe’s future prosperity and to preserve the quality of …