Why coal is (still) worse than fracking and cow burps

By

“Geoscientist Raymond Pierrehumbert argues that carbon dioxide is always worse than shorter-lived pollutants like methane.

“To understand the pitched fight over this question, you first need to realize that for many years, we’ve been burning huge volumes of coal to get electricity — and coal produces a ton of carbon dioxide, the chief gas behind global warming. Natural gas, by contrast, produces half as much carbon dioxide when it burns, and thus, the fracking boom has been credited with a decline in U.S. greenhouse gas emissions. So far so good, right?

“Umm, maybe. Recently on our Inquiring Minds podcast, we heard from Anthony Ingraffea, a professor of engineering at Cornell University, who contends that it just isn’t that simple. Methane (the main component of natural gas) is also a hard-hitting greenhouse gas, if it somehow finds its way into the atmosphere. And Ingraffea argued that because of high leakage rates of methane from shale gas development, that’s exactly what’s happening. The trouble is that methane has a much greater “global warming potential” than carbon dioxide, meaning that it has a greater “radiative forcing” effect on the climate over a given time period (and especially over shorter time periods). In other words, according to Ingraffea, the CO2 savings from burning natural gas instead of coal is being canceled out by all the methane that leaks into the atmosphere when we’re extracting and transporting that gas. (Escaped methane from natural gas drilling complements other preexisting sources, such as the belching of cows.)”

Read more: grist.org

GR:  Interesting article that delivers real information.

Comments:

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.