Tag Archives: aerosols

New methods for better purification of wastewater

Before wastewater reaches recipient waters, nutrients must be removed in order to avoid eutrophication and large algal blooms, which may result in serious damage to animal and plant life. Robert Almstrand at the University of Gothenburg, Sweden, has shown in his thesis that better removal of nitrogen from wastewater can be achieved by providing the bacteria that purify the water with alternating high and low levels of nutrients.

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SRM geoengineering more likely to increase global food production

If we would pump aerosols in the stratosphere to artificially cool the Earth and thereby compensate (part of) the current climate warming, we would be permanently living under a slight sunshade. That would mean in a futuristic world it may … Continue reading →

Today’s paradox: global warming may offset Criegee cooling

And that’s not quite the same as having things the other way around. If you see Criegee biradicals as silver bullet, remember they are already constantly being fired up…

‘No, climate sensitivity is not smaller, it is higher than we thought’ – because organic aerosol feedbacks mask warming

Says an international research group led by Gothenburg University. It serves to show individual climate sensitivity studies are never conclusive but add up bits of fresh understanding to an already enormous pile of data and knowledge.

Indian aerosol pollution stimulates tropical cyclones over Arabian Sea – because of monsoon disturbance

White sulfur aerosols cool the climate; black carbon soot warms the climate. So when you mix the two kinds of aerosol pollution up in the Asian brown cloud, one would expect climate effects to even out. Unfortunately in our physical … Continue reading →

Today’s paradox: Indian monsoon may recover at price of climate change

Over the second half of the 20th century the monsoon rains in the Ganges Valley in north and northeast India decreased by 10 percent. Meanwhile monsoon rains in the south and the Indus Valley [remember 2010 Pakistan floods] increased. Burning … Continue reading →

Today’s paradox: coal is not worse for climate than natural gas

It´s basic chemistry: coal is mainly carbon, if you burn it you get lots of CO2. Natural gas is mostly methane, and that’s a different story. With methane just ’20 percent of the burned atoms’ are carbon, the rest is … Continue reading →