By Intermountain Rural Electric Association
www.intermountain-rea.com
1. While temperatures rose in the 20th century, why did most of the warming occur in the first half of the century and earlier, when fewer fossil fuels were burned? North America warmed substantially between 1850 and 1930. But in 1971 a spokesman for the National Center for Atmospheric Research in Boulder, while noting that global temperatures had fallen during the previous 20-30 years, claimed that industrial pollution would soon reduce the global temperature by 3.5°C. read on
