The climate in the northern hemisphere was much colder in the late 1700s than in the 20th century, with large American rivers like the Delaware routinely freezing over during the winter. If you lived back then, would you demand that the climate be “protected” at its then-current state? The Politically Incorr... Christopher C. Horner Best Price: $1.28 Buy New $7.79 (as of 05:35 UTC - Details)

With reference to the above, how do you determine the optimal “global” temperature?

Greenland during the period of roughly 1100-1700 was warmer than it has been since, and it supported European settlements for hundreds of years. After subsequent centuries of colder temperatures and expanding glaciers, why should we now be anxious if Greenland is a bit warmer today than 60 years ago?

In the atmosphere, there are four parts carbon dioxide to every 9,996 other parts. Do you think minor variations in an inert gas molecule comprising 0.04% of anything can by itself have a meaningful effect on any physical or thermal barrier?

Thinking about the sun, ocean currents, water vapor, volcanic emissions, vegetation and other such natural variables, is CO2 a bigger climate influence?

Fossil Future: Why Glo... Epstein, Alex Best Price: $3.68 Buy New $10.80 (as of 08:52 UTC - Details) If western industrialized societies are the “worst” emitters of CO2, and larger populations emit more CO2, shouldn’t we halt the massive immigration of consumers from low-carbon Third World countries to high-carbon developed countries?

Giant sheets of ice covered much of the earth’s land area during the last ice age, which ended about 10,000 years ago. During that time, the huge glaciers rapidly melted, without human help. Why do you feel that man, who generates only about 10% of all new carbon dioxide, has a major impact on a global climate that is subject to much more direct, massive natural forces?

Are Europe and North America more inhabitable now, or when they were covered in ice?

Global crop yields have soared in the past 60 years. Can you explain how “climate change” has harmed food production?