In an excellent article on global warming Paul Driessen, senior policy adviser for the Congress of Racial Equality and Center for the Defense of Free Enterprise and author of "Eco-Imperialism: Green Power, Black Death", provides some interesting temperature data. He writes, "Now that NASA has corrected its U.S. temperature records, the hottest year on record is no longer 1998, but 1934. Five of the 10 hottest years since 1880 were between 1920 and 1940 — and the 15 hottest years since 1880 are spread across seven decades. This suggests natural variation, not a warming trend."