Updated Climate Models Clouded by Scientific Biases, Researchers Find

After all, the ultimate goal of any model evaluation study is to help improve those models.”

Ocean Atmosphere Response to Solar EMR at Top of the Atmosphere

How can climate models hope to reflect the real world when clouds are parameterised with no sensitivity to surface temperature?

The Big 5 Natural Causes of Global Warming part 5: How Clouds Moderate Global Warming

Any global reduction of cloud cover increases global warming. And reduction of local clouds can cause heat waves.

Clouds Haven’t Behaved the Way the IPCC Or the Models Say

My paper argues that clouds behaved largely independently of CO2 and had as much of a warming effect as CO2, maybe much more.

Where have all the Clouds gone and why care?

By Charles Blaisdell PhD ChE The earth’s cloud cover has long been an important puzzle in climate change.  Cloud cover has many types and varies significantly from year to year. …

Climate Change Weekly #425: Climate Model Problems Persist, Changes Reduce Accuracy Further

In the past week, two more articles have been added to the growing body of literature discussing the fact that climate models have consistently failed to project the Earth’s temperatures…

Swiss Analysis: Climate Models Running Too Warm, Falsely Calibrated…IPCC Needs “To Review Its Findings”

“The warming of the last 20 years has been caused more by changes in clouds than by the classical greenhouse effect,” say study authors Fritz Vahrenholt and Hans-Rolf Dübal

Radiative energy flux variations from 2000 – 2020

The time span of 20 years is still too short to be able to decide conclusively whether the current heating phase is a temporary or permanent development. In the former…

Models In Turmoil: Underestimation Of Satellite-Based Cloud-Aerosol Interaction “Hampering Climate Change Projections”

By acting as cloud condensation nuclei (CCN), aerosols act as cloud condensation nuclei and thus can alter cloud properties and precipitation. This influences the Earth’s radiation budget and hence climate…

Aerosol formation in clouds

“Our experimental setup allows us for the first time to precisely investigate the distribution of organic vapours at the air-water interface under near-environmental conditions,” says Houssni Lamkaddam, a researcher in…

$10 Million AI Grant to Improve Climate Modelling of Clouds

A Team of Scientists plans to use AI to improve climate modelling of sub-grid scale phenomena such as turbulence and clouds. But there is no reason to think an AI…

Climate worst-case scenarios may not go far enough, cloud data shows

The Guardian publishes another classic: “It’s worse than we thought” story. Modelling suggests climate is considerably more sensitive to carbon emissions than thought Oy Worst-case global heating scenarios may need…

What is the difference between partly sunny and partly cloudy?

Reposted from the Cliff Mass Weather Blog Twice today I was asked about the difference between partly cloudy and partly sunny.   And that inquiry is one of the most frequent…

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,…

First-time direct proof of chemical reactions in particulates

Paul Scherrer Institute Researchers at the Paul Scherrer Institute PSI have developed a new method to analyse particulate matter more precisely than ever before. With its help, they disproved an…

Ice Nucleating Particles Carried From Below a Phytoplankton Bloom to the Arctic Atmosphere

Paper at Geophysical Research Letters. J. M. Creamean J. N. Cross R. Pickart L. McRaven P. Lin A. Pacini R. Hanlon D. G. Schmale J. Ceniceros T. Aydell N. Colombi…

Persistent plume

Analysis of massive 2017 cloud of wildfire smoke will help calibrate climate models, including modeling of nuclear winter, geoengineering University of Colorado at Boulder Thunderstorms generated by a group of…

Why climate predictions are so difficult

From Climate Etc. by Judith Curry An insightful interview with Bjorn Stevens. Frank Bosse provided this Google translation of an interview published in Der Spiegel  -Print-Issue 13/2019, p. 99-101.   March…

Could spraying particles into marine clouds help cool the planet?

From Eurekalert Public Release: 25-Jul-2017 University of Washington The idea of geoengineering, also known as climate engineering, is very controversial. But as greenhouse gases continue to accumulate in our atmosphere,…

Silver Ants

Guest Post by Willis Eschenbach I stumbled across a lovely article about the Saharan silver ant over at phys.org. These ants have special hairs that reflect strongly in the visual…

Negative feedback? Declining sea ice to lead to cloudier Arctic

From the AGU weekly highlights Composite image. Data from MODIS. Credit: National Snow and Ice Data Center. See High Resolution Image Key Points: EFA method is valuable in providing quantitative…