Tag Archives: CO2

Not recession but gas prices responsible for reduction in US carbon emissions

When the economic recession hit the US in 2009, at least one good thing seemed to have come from it: a reduction in carbon emissions to levels not seen since 1996. But as it turns out, the recession wasn’t the … Continue reading →

New polyamine CO2 adsorbent may be step forward for CCS technology – and CDR geoengineering

Policy makers find CCS too expensive, climate activists call it an excuse for coal and none of us want it applied in our own backyards. But fortunately science also has a way of silently progressing, as we will be needing … Continue reading →

‘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.

CDR geoengineering challenge: low-carbon cement, high-carbon concrete

Current practice is to grind and burn enormous amounts of limestone, releasing equally enormous amounts of CO2 to the atmosphere. But isn’t there some way to reverse the chemical process and still end up with building material?

Despite recession carbon emissions keep rising to new records

We knew CO2 emissions reached a new record high in 2010, at 30.6 gigatonnes. Now a new study by CICERO, the Tyndall Centre and other institutes reconfirms the strong rebound after the 2008 global financial crisis – and predicts that … Continue reading →

Good news? According to paleo research median CO2 climate sensitivity could be 0.7 degrees lower

The most-quoted climate sensitivity range (IPCC 4AR) suggests a median temperature response to a doubling of the atmospheric CO2 concentration of 3 degrees Celsius – and a 66 percent probability range warming under CO2-doubling will be somewhere between 1.5 and … Continue reading →

World food demand could double by 2050 – if so agricultural intensification could save 2 billion tonnes of CO2 per year

A new projection by the University of Minnesota and the University of California Santa Barbara shows global food demand could rise by 100-110 percent between 2005 and 2050, which would pose a grave threat to remaining tropical rainforests and would … Continue reading →