Climate Change

Category archives for Climate Change

What is not new Ultimately sea levels will rise several feet, given the present levels of CO2 in the atmosphere. We already knew this by examining paleo data, and finding periods in the past with similar surface temperatures and/or similar atmospheric CO2 levels as today. I put a graphic from a paper by Gavin Foster…

June 2015 was warm

Every month NASA GISS comes out with the new data for the prior month’s global surface temperature, and I generally grab that data set and make a graph or two. In a way this is a futile effort because the actual global surface temperature month by month is not as important as the long term…

A new paper has just been published. This paper is going to cause an uproar in the science denialist community. Mud will be thrown. Tin hats will be donned. Somebody better check the oil pressure. Conspiracies everywhere I see conspiracies everywhere. It’s true. Look at any internet site that talks about health, disease, diet, or…

Focusing on Earth, but also a few tidbits on wind, fire, and ice, some current news and observations about global warming. Earth As humans release greenhouse gas pollutants (mainly CO2) into the atmosphere, the surface of the Earth, and the top 2000 meters of the ocean, heat up. But some of the CO2 is absorbed…

Global Warming Is Heating Up

Humans have been releasing greenhouse gas pollution into the atmosphere for a long time now, and this has heated up the surface of the planet. This, in turn, has caused a number of alarming changes in weather. Several current weather events exemplify the effects of climate change. Record High Temperatures Being Shattered South Asia recently…

I want to quickly mention two interesting items that crossed my desk. First is a study in Nature that looks at changes in extreme weather patterns between 1979 and very recently, the other is a study of how media has been addressing climate science denial among presidential candidates. Evidence that global warming is intensifying extreme…

The New Andrew Revkin Fan UPDATED

See below for update. Andrew Revkin has a new kind of fan. These are fans that agree with much of what Revkin says, or at least feel comfortable in his community of commenters. These fans feel their views are substantiated by what they read in Revkin’s New York Times column, Dot Earth. They seem to…

There is a new attack by an anti-science and anti-environment talking head on a well respected climate scientist and his work. Mark Steyn is self publishing a book of quotes by scientists that allegedly disparage Dr. Michael Mann and the “Hockey Stick.” If the three examples Steyn provides to advertise his book are representative, Steyn’s…

Michael With Mike Mann On Pope

Michael Mann was interviewed by Michael Smerconish about the Pope’s recent letter on climate change: Here’s the NYT piece by Justin Gillis mentioned by Mann. The graphic at the top is form here.

NOAA has released the data for average global surface temperature for the month of May. The number is 0.87 degrees C (1.57 degrees F) above the 20th century average for their data set. This is the highest value seen for the month of May since 1880, which is the earliest year in the database. The…