Atmospheric CO2 typically peaks in May when measured at the commonly accepted standard of Mauna Loa in Hawai’i. May 2017 hit 409.65 ppm, exceeding last May’s record of 407.7ppm. The planet has warmed by 1.8C, just below the limit of 2C which is believed to be the threshold where radical and irrevocable climate change will occur. Some argue that the limit was at 1.5C. Because the planet is so complex, there may not be one simple number. Each system may have its limit. Whatever the limits are, atmospheric carbon dioxide continues to increase at dangerous rates.

2 thoughts on “Record Atmospheric CO2

  1. Pingback: Data That Matters June 2017 | Pretending Not To Panic

  2. Pingback: Popular Posts 2017 | Pretending Not To Panic

Leave a Reply

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 )

Facebook photo

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

Connecting to %s