See this recent report. It appears we really don't have the time to take our time in the transition to fairly clean renewable energy. Not even with transitional energies like gas from fracking, as this report
notes the amount of methane released into the atmosphere means "its
greenhouse-gas footprint is worse than coal or oil for timescales of
less than fifty years."* This is not just a scare tactic but a
significant consensus of scientists on the dire yet irrefutable facts.
* The wiki article notes that other reports challenge this, with a response from the original report that makes this claim. One of the challengers notes that the actual carbon footprint is perhaps 1/2 to 1/3 that of coal. Even if true given the acceleration of increasing heat perhaps we might consider if such a footprint is acceptable?
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