Guardian: Climate scientists are canaries in the coalmine - highly attuned to sense danger before we blunder into it. For decades, various researchers have issued calamitous warnings about climate change. But was there a moment when science collectively, definitively, dropped off the perch?
During the 1990s, scientists were still debating the most basic assertions of climate change science. Was the world indeed warming? Consensus was growing, but slowly and many scientists remained undecided.
Two bold...