A new report shows that this recent warm spell is nothing abnormal or unprecedented—during the 1990s there was simply a return to conditions present during 1931-1960. The reason for the shift is warm ocean temperatures that are, in turn, driven by variation in warm ocean currents from the tropics.
Fonte: Climate Change Dispatch
The whole “affordable energy” idea is based on the myth that if we don’t include those external costs in the price — the pollution costs, the national security costs — they just go away. They don’t. Keeping prices artificially low just transfers those costs to someone else, (..) someone who has to go off to fight a war to keep the shipping routes open. (...) If there’s one thing we can’t afford, it’s “affordable energy.”
Fonte: Climate Etc.