Although we have had many decades of projections and warnings about climate change it is, as is all too usual, only fairly recently that actual impacts have stirred serious societal interest in mitigation efforts. Such efforts will involve changes, and changes are always difficult. In fact, although renewable energy is a bedrock mitigation approach, it is only as technology has reduced renewable costs below parity with fossil carbon that they have been taken very seriously. Renewable energy technologies are already producing some 25% of electricity worldwide and constitute some 65% of new generation. It appears that favorable economics motivates change more often than longer term issues. In the case of climate change, it is no longer long term. In fact many indicate we have a decade or less to institute serious mitigation or rather dire impacts are projected. Fortunately humans have invented approaches which would be effective in that decade time frame and be overall economically advantageous.
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