Here on Mauna Loa, air is collected on a 40 meter (130 foot) tower (left) and analyzed for CO2 content. At right, a powerful laser beam is used to measure aerosols and particles in the air up to 45 km into the stratosphere.
Similar to the global trend, warmer Southern States have more venomous species than North States. Arizona is the clear winner (or loser) with over 30 species.
1 About 7,000 people are bitten by venomous snakes in the U.S. annually. 2  Only 0.2% (1 out of 500) venomous snake bites result in death.  On average, 1 to 2 people in Texas die each year from venomous snake bites in Texas.