Warming can be eased only with zero emissionsNovember 21st, 2011 - 2:35 pm ICT by IANS
London, Nov 21 (IANS) Global warming can be eased only if carbon dioxide (CO2) emissions begin to fall within the next two decades and eventually decrease to zero.
The research focuses on the scale of carbon emission reduction needed to keep future global warming at no more than two degrees Celsius over average temperatures prior to the Industrial Revolution.
This target is now almost universally accepted as a safe limit. The team examined the extent to which carbon emissions should be reduced, how steep this reduction needs to be and how soon we should begin, the journal Nature Climate Change reports.
Pierre Friedlingstein, professor at the University of Exeter, who led the study, said: “When I analysed these results, I was surprised to see so few options available to us.
“We know we need to tackle global warming, but our research really emphasises the urgency of the situation, added Friedlingstein, according to an Exeter statement.
“The only way for us to achieve a safe future climate will be to reduce emissions by at least three percent, starting as soon as possible. The longer we leave it, the harder it will be.”
The researchers found that zero or negative emissions are compatible with this target if global carbon emissions are reduced by at least three percent per year within the next two decades.
The results clearly show that if reducing global emissions is delayed by just 10 or 20 years, then much steeper reductions will be needed in order to meet a two-degree warming target.
- New CO2 model to ensure that Earth doesn't heat up beyond two degrees - Aug 03, 2010
- Global CO2 emissions on the rise again in 2010 - Nov 22, 2010
- Experts study black carbon, tropospheric ozone's role in climate change - Feb 21, 2011
- Global warming will push up sea level - Jun 25, 2012
- Climate summit looks at weak deal - Nov 30, 2011
- 66pc permafrost to melt by 2200, speed up global warming in coming years - Feb 17, 2011
- Old quarrels threaten new gains in climate change fight - Dec 06, 2010
- Global CO2 emissions may reach 'record levels in 2010' - Nov 22, 2010
- 2050 climate conditions crucial to harmful impacts in 2100 - Jan 12, 2010
- The Climate Change Terminology (To go with Curtain Raiser) - Nov 27, 2011
- Scrubbing CO2 from air could be a long-term commitment - Jul 02, 2010
- Two thirds of permafrost likely to melt by 2200 - Feb 17, 2011
- US agency sounds warning bells over climate change - May 13, 2011
- Spiritual guru favours carbon tax - Dec 22, 2011
- Low-carbon technology can't fix global warming - Feb 16, 2012
Tags: average temperatures, carbon dioxide, carbon emission, celsius, climate change, co2 emissions, decades, emission reduction, extent, global carbon emissions, global emissions, global warming, industrial revolution, journal nature, london, target, university of exeter, urgency, zero emissions