Remember that back in the early 1900s the climate was warm enough to support a thriving citrus industry along the northern Gulf coast. It was around 1935 that the climate shifted to cold enough to kill all the orchards. That cooler period lasted a long time and even prompted warnings about a coming ice age from those looking to gain more government control over others. Mother nature calls her own shots and there isn't anything humans can do about it. It's a shame that the usual suspects want to use it for nefarious purposes.