“The big picture is that the global warming clock for emissions reductions to minimize the risk of dangerous climate change ...

Climate change deniers inaccurately claim that Earth's rapidly rising temperatures are the mere product of natural cycles. Scientific experts have long explained that, although Earth does experience ...

For years, climate policy has been built around the idea that humanity still had a narrow window to keep global warming ...

Source: “A 485-million-year history of Earth’s surface temperature”, E.J. Judd et al. Temperatures are averages for geological periods. Shaded area shows values with a 68% probability.

Our species likes it cold. Homo sapiens evolved in — and still inhabits — one of Earth’s rare and fragile ice ages, periods distinguished not by an abundance of saber-toothed cats and woolly mammoths ...

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