Back in post #2265 (about six weeks ago) I linked an article posted on the PBS/NOVA site back in 1997 which opens with the following:
"During the past billion years, the Earth's climate has fluctuated between warm periods—sometimes even completely ice-free—and cold periods, when glaciers scour the continents. In this article, climate scientist Kirk Maasch offers perspective on these historic changes, including the likely causes of the last great ice age—which contrary to common knowledge, we are still in the midst of."
As someone with a background in science, I'd be interested in your opinion on the validity of the above, and if it is valid, why do opponents of AGW not put this argument forth?