article thumbnail

Ocean circulation going South?

Real Climate

While even the earliest climate projections from the 1980s suggested that the climate change signal around Antarctica would be muted (especially compared to the Arctic), they did not predict that it would actually cool – which it actually has (at least until around 2015/2016).

article thumbnail

Promoting Coal, Trump Looks Backward

Circle of Blue

The Paris Climate Agreement seemed well-positioned to join the 1963 Nuclear Test Ban Treaty (halting atomic explosions above ground that contaminated the atmosphere) and the 1987 Montreal Protocol (ending use of chemicals that damaged the ozone layer) as one of the three most significant environmental treaties ever negotiated.

Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

The Upper Atmosphere Is Cooling, Prompting New Climate Concerns

Yale E360

A new study reaffirming that global climate change is human-made also found the upper atmosphere is cooling dramatically because of rising CO2 levels. Scientists are worried about the effect this cooling could have on orbiting satellites, the ozone layer, and Earth’s weather. Read more on E360 →

article thumbnail

CMIP6: Not-so-sudden stratospheric cooling

Real Climate

As predicted in 1967 by Manabe and Wetherald , the stratosphere has been cooling. The dominant factors are changes in CO2 (a cooling), ozone depletion (a cooling), warming from big volcanoes, and oscillations related to the solar cycle. So the net effect is less absorption and more emittence, and thus they give a cooling.

article thumbnail

Some new CMIP6 MSU comparisons

Real Climate

This ensemble samples model structural variability (vertical resolution, model top, interactive composition) and some aspects of forcing uncertainty (notably for aerosols and ozone), as well as the initial-condition (‘weather’) variability we are used to seeing. As above, the GISS ensemble diverges slightly from the observations.

article thumbnail

The upper atmosphere is cooling, prompting new climate concerns

Environmental News Bits

A new study reaffirming that global climate change is human-made also found the upper atmosphere is cooling dramatically because of rising CO2 levels. Scientists are worried about the effect this cooling could have on orbiting satellites, the ozone layer, and Earth’s weather. Read the full story from e360.

article thumbnail

This Climate Debate is a lot of Hot Air

Legal Planet

We’ve been hearing a lot lately about geoengineering – the various scientific theories and governance ideas that could eventually lead to technological interventions to help cool the planet. To suggest that those who support the idea of geoengineering research think that deploying it is a good idea is a straw man argument.