Agence France-Presse: Being a climate scientist these days is not for the faint of heart, asarguably no other area of research yields a sharper contrast between "eureka!" moments, and the sometimes terrifying implications of those discoveries for the future of the planet. "Science is exciting when you make such findings," said Konrad Steffen, who heads the Cooperative Institute for Research in Environmental Sciences (CIRES) in Boulder, Colorado. "But if you stop and look at the implications of what …