Here, courtesy of Cato’s www.HumanProgress.org, is the quintessence of Earth Day’s anti-humanism. Botswana and Burundi started off as equally poor. In 1962, their GNI per capita was a paltry $70 per person.

By 2012, Botswana’s income per person rose by some 10,829 percent to $7,650. Burundi’s rose by mere 243 percent to $240. Botswana is an African success story, while Burundi is a failure–that is, if you judge the two countries by their income and, consequently, their standards of living.

If, however, you judge the two countries by their CO2 emissions per person, Burundi is the clear winner. Between 1972 and 2010 (the maximum number of years for which data on CO2 emissions per capita is available for both countries), CO2 emissions per person in Burundi increased only 62 percent. In Botswana it skyrocketed by 8,847 percent.

As my colleague Pat Michaels noted earlier, growing wealth necessitates higher carbon emissions in the short or medium term, but greater prosperity enables people to become both greener and more energy efficient in the long term. Denying cheap energy to the developing world will trap hundreds of millions of people in poverty and lead to more humanitarian disasters.