[Source.](https://spectator.org/green-elites-are-attacking-the-american-lifestyle-john-kerry/) > **CO2 Is Not the Problem** > Kerry asserted that agriculture produces between 26 and 33 percent of CO2 emissions in the United States. Consequently, if “net zero” is to be attained, there need to be major changes in American agriculture. Factually, Kerry is off base. The U.S. Department of Agriculture itself has cited Environmental Protection Agency studies quantifying agriculture’s share of U.S. emissions at 11.2 percent. > It should not surprise us that climate alarmists mutilate science all the time, starting with their fundamental premise — the dogma that CO2 is the thermostat that regulates temperatures in Earth’s atmosphere. Scientist W. Jackson Davis “documents an overall negative correlation between global temperatures and atmospheric concentrations over the last 210 Mya [million years ago].” “Negative correlation” — i.e., if the atmospheric concentration of CO2 rises, temperatures fall more often than not. > It is a well-known scientific fact that the dominant greenhouse gas by far is water vapor. As NASA has reported: “When the [underwater eruption] of the Hunga Tonga-Hunga Ha’apai volcano erupted on Jan. 15 [2022] … [it] blasted an enormous plume of water vapor into Earth’s stratosphere … equal to 10% of the water already present in that atmospheric layer” — water vapor that “could remain in the stratosphere for several years,” resulting in a “small, temporary warming effect.” In other words, if you are fretting over July’s “hottest day(s) ever” hype, blame the Tonga volcano and El Niño, not CO2.