Science: The appointment of a reputed climate change denier as the head of Brazils science ministry has some scientists worried about the countrys environmental future. Others are withholding judgment, at least until the new minister, Aldo Rebelo, appoints the team of scientists and policymakers who will work with him for the next 4 years.
Rebelo, a hard-line communist, labeled climate change an environmental scam in a 2010 open letter to environmentalist Marcio Santilli, according to Bloomberg View....