Feeds

Soot almost as bad as CO2 for global warming

Smoke gets in eyes of climate boffins

Remote control for virtualized desktops

US scientists have said switching anti-global warming efforts to tackling the production of soot would offer a quicker return than cutting CO2 emissions.

According to US scientists, enormous damage is being done by soot, which is being created by the combustion of fossil fuels and as an indirect result of deforestation, among other factors.

They claim that soot - or black carbon to give it the scientific name - is the second biggest cause of global warming behind CO2, causing 60 percent of the warming effect of CO2.

Professor Greg Carmichael, of the University of Iowa and Professor V Ramanathan, of Scripps Institution of Oceanography, argue that tackling the emissions of soot offers a far quicker chance to address global warming than trying to reduce CO2 emissions. They said this is because soot has a much shorter lifetime than CO2, which can hang about for around 100 years.

The scientists, who published their research in the Nature Geoscience journal on Sunday, estimate that soot will have a surface warming effect on the Earth of "about 0.5 to 1 deg C". They say its energy effect is around 0.9 watts per square metre, substantially more than the 0.2 - 0.4 watts per square metre estimated by the Intergovernmental Panel on Climate Change.

Most of the world's soot was created by Europe and North America until the 1950s, but since then the two regions have been overtaken in their contribution by nations in the tropics and the Far East.

In less developed countries, soot is created by cooking with biofuels such as wood, dung and crop residue. It's also produced by so-called open biomass burning, which is associated with deforestation and burning crops. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
Renewable energy 'simply WON'T WORK': Top Google engineers
Windmills, solar, tidal - all a 'false hope', say Stanford PhDs
FORGET the CLIMATE: FATTIES are a MUCH BIGGER problem - study
Fat guy? Drink or smoke? You're worse than a TERRORIST
SEX BEAST SEALS may be egging each other on to ATTACK PENGUINS
Boffin: 'I think the behaviour is increasing in frequency'
HUMAN DNA 'will be FOUND ON MOON' – rockin' boffin Brian Cox
Crowdfund plan to stimulate Blighty's space programme
Post-pub nosh neckfiller: The MIGHTY Scotch egg
Off to the boozer? This delicacy might help mitigate the effects
I'M SO SORRY, sobs Rosetta Brit boffin in 'sexist' sexy shirt storm
'He is just being himself' says proud mum of larger-than-life physicist
NASA launches new climate model at SC14
75 days of supercomputing later ...
Britain's HUMAN DNA-strewing Moon mission rakes in £200k
3 days, and Kickstarter moves lander 37% nearer takeoff
prev story

Whitepapers

Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
Getting started with customer-focused identity management
Learn why identity is a fundamental requirement to digital growth, and how without it there is no way to identify and engage customers in a meaningful way.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Internet Security Threat Report 2014
An overview and analysis of the year in global threat activity: identify, analyze, and provide commentary on emerging trends in the dynamic threat landscape.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.