Man-made climate change is here.

Climate change is a reality we can no longer ignore. We see the impacts in our everyday lives, from extreme superstorms, to heat waves, to massive wildfires and droughts. But climate denial, bankrolled by Dirty Energy companies and justified by pseudoscience, persists.

Reality Drop, inspired by Skeptical Science, is a library of science-based rebuttals to climate change deniers.

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• #61: Ice melt isn’t warming the Arctic

  Deniers say: The Earth’s climate has natural feedbacks that keep the planet cool. Otherwise, we’d be seeing runaway warming in the Arctic.
  Science says: The Arctic has been warming twice as fast as the rest of the world.
  In recent decades, the Arctic has been warming at twice the global average rate. Recent research finds that melting sea ice plays a central role in this accelerated warming. How does this work? Sea ice acts like a bright white shield that reflects a portion of the sun’s rays back into space. Deep blue ocean water, however, is less effective in reflecting sunlight. It absorbs a lot more of the sun’s energy, which results in warming. Warming, of course, results in less ice, which in turn results in more warming. It’s a troubling feedback loop.