Study: China’s Clean Air Policies are Triggering Additional Global Warming

According to a study whose authors include Ken Caldeira, China’s efforts to eliminate its infamous air pollution could cause an additional 0.1C NH warming, because less sunlight will be reflected…

NASA finds dirty glaciers in Alaska – may melt faster

Over the years, scientists have captured spectacular photographs while mapping ice during NASA’s Operation IceBridge mission. Many of the photographs have featured the icy landscapes of Greenland and Antarctica, over which lengthy…

Recycled science: Reflective surfaces alleviate heatwaves

From ETH ZURICH and the “obvious science” department comes this study that is little more than a recycle of what is already understood about crops and “shininess”, back in 2009 –…

Surprise! Greenland ice sheet melting being driven by ice-loving algae

From the American Geophysical Union and the “but we’ll still find a way to blame CO2, just you wait” department. It seems this is a frustrating day for climate-ice researchers,…

Study: Ice sheets may melt rapidly in response to soot from distant volcanoes

Study of ancient eruptions shows modern ice sheets could be vulnerable From THE EARTH INSTITUTE AT COLUMBIA UNIVERSITY and the “dirty ice” melts faster department Volcanic eruptions have been known…

Why Albedo is the Wrong Measure of Reflectivity for Modeling Climate

Guest essay by Clyde Spencer The total reflectivity of Earth is important in energy budget calculations and in Global Circulation Models used to predict climate. If the value used is…

Settled Science: Clusters of small satellites could help estimate Earth's reflected energy

From M.I.T. and the “Total outgoing radiation is actually one of the biggest uncertainties in climate change” department: Batches of shoebox-sized satellites could improve estimates of Earth’s reflected energy A…

And yet another unaccounted for climate variable: snow algae accelerates melting of Arctic glaciers

Earlier, we published a story about how clouds near airplane contrails get brighter, reflecting more solar radiation to space. Now, on the surface, this new study says that Arctic glaciers…

Another unaccounted for climate variable: Airplanes make existing clouds brighter

From STOCKHOLM UNIVERSITY and the department of negative feedbacks comes this surprising finding that says not only do contrails add reflectivity for incoming solar radiation, they also increase reflectivity for…

Earthshine project reports on Earth's reflectance over the last 16 years

In the early days of WUWT, I reported on this project here: Earth’s Albedo Tells an Interesting Story Now data has been release in a new paper. From the INSTITUTO DE ASTROFÍSICA…