Comment by leobg

When you look at the chart, it's odd that the temperature rise started only in the 1980s. Or at least what you can see in the chart. People have been burning wood and coal for centuries. The industrial revolution happened in the 19th century. There were railroads and airplanes. And big industry in the 1950s and 60s. So it's what we are seeing there. Just the delayed reaction toall of that? Or is there something especially grave that happened immediately before the 1980s?