Hundreds of climate scientists across the globe are petitioning President Donald Trump to withdraw from a United Nations environmental treaty ratified in 1992 by President George H.W. Bush. Their message delivered last week is succinct:
We urge the United States government, and others, to withdraw from the United Nations Framework Convention on Climate Change (UNFCCC). We support reasonable and cost-effective environmental protection. But carbon dioxide, the target of the UNFCCC, is not a pollutant but a major benefit to agriculture and other life on Earth. Observations since the UNFCCC was written 25 years ago show that warming from increased atmospheric CO2 will be benign — much less than initial model predictions.