Climate science is dominated by alarmists addicted to the idea that increasing carbon dioxide (CO2) will cause dangerous global warming. How much warming is thus the central scientific question—a question with significant implications for public policy responses.
This question has been surprisingly difficult to answer, despite 40 years of research, costing tens of billions of dollars. Now the issue is exploding because two different answers are emerging, one harmlessly low and the other dangerously high. This divergence is a crisis for the alarmist community. How they handle it remains to be seen.
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