COVID-19 lockdowns temporarily raised global temperatures

The lockdowns and reduced societal activity related to the COVID-19 pandemic affected emissions of pollutants in ways that slightly warmed the planet for several months last year, according to new…

The natural ‘Himalayan aerosol factory’ can affect climate

“To understand how the climate has changed over the last century we need to know as reliably as possible the natural atmospheric conditions before the industrialization,” says Associate Professor Federico…

Does Universal Mask Wearing Decrease or Increase the Spread of COVID-19?

A survey of peer-reviewed studies shows that universal mask wearing (as opposed to wearing masks in specific settings) does not decrease the transmission of respiratory viruses from people wearing masks…

Ships’ emissions create measurable regional change in clouds

A container ship leaves a trail of white clouds in its wake that can linger in the air for hours. This puffy line is not just exhaust from the engine,…

Australia Bushfire Smoke Now Warming the Lower Stratosphere?

From Dr. Roy Spencer’s Blog March 4th, 2020 by Roy W. Spencer, Ph. D. Fig. 1. Bushfire smoke flowing eastward from SE Australia on January 4, 2020 as seen from…

Why Volcanoes Don't Matter Much

Guest Post by Willis Eschenbach The word “forcing” is what is called a “term of art” in climate science. A term of art means a word that is used in…