Climate Change The Earths climate has changed many times during the planets history, with everything from ice ages to heat waves. Natural factors such as volcanic eruptions, changes in the Earths orbit and precession, and the amount of energy released from the Sun have affect Earths climate. Beginning late in the 18th century, human activities associated with the Industrial Revolution have changed the composition of the atmosphere and are very likely are influencing the Earths climate. 
Climate Forcings Some factors that can shape climate are variations in solar radiation, changes in the Earths orbit, plate techtonics, and changes in greenhouse gas concentrations. CO2 is one of these greenhouse gases. Feedback loops can amplify or diminish these effects. Some parts of the climate, such as oceans and ice caps, respond slowly in reaction to these effects because of their large mass. Therefore, the climate system can take centuries or longer to fully respond to new external forcings. 
CO2 | Carbon Dioxide Carbon dioxide (CO2) is a gas that naturally comprises 0.039% of the atmosphere. As of October 2010, carbon dioxide in the Earths atmosphere is at a concentration of 388 ppm by volume.  Climate impacts have led scientists to conclude that we are already above the safe zone, and that unless we are able to quickly return to below 350 ppm this century, we risk reaching the tipping point of irreversible impacts such as the melting of the Greenland ice sheet and major methane releases from increased permafrost melt. 
CCS | Carbon Capture Storage Carbon capture and storage (CCS) is one part of a general strategy for reducing CO2 emissions to combat climate change. "If humanity wishes to preserve a planet similar to that on which civilization developed and to which life on Earth is adapted, CO2 will need to be reduced from its current 385 ppm to at most 350 ppm." It is a hard task, but not impossible. We need to stop taking carbon out of the ground and putting it into the air. We need to start using using more of our most abundant energy sources, solar and wind energy and other such sources of renewable energy. If we do, then the earth will slowly and naturally cycle some of the extra carbon out of the atmosphere, and eventually CO2 concentrations will return to a safe level. “By decreasing use of other fossil fuels, and improving agricultural and forestry practices around the world, scientists believe we could get back below 350 by mid-century. But the longer we remain in the danger zone—above 350—the more likely that we will see disastrous and irreversible climate impacts”. 
What are some of the ways to reduce atmospheric CO2?
Turning CarbonDioxide into UsefulProductsMassachusetts-basedNovomer has received$18.4 million from the USDepartment of Energy todevelop a process forconverting carbon dioxideinto polycarbonatepolymers that could beused to make plasticbottles. Since itsformation 4 years ago,Novomer has beendeveloping a way to formplastics that containbetween 40 and 50 percent carbon dioxide byweight. 
Capturing carbon with copper Researchers at Leiden University, have developed a selective copper complex predisposed to capture CO2 and ignore other atmospheric gasses. The trapped CO2 can beThe dinuclear copper(I) complex is oxidised in air by carbon dioxide rather than oxygen. removed through electrochemistry, requiring a relatively low electrical potential to replace lost electrons.  Carbon dioxide is bound between two molecules of the copper complex and converted to oxalate.
UndergroundStorageThe IEAs Carbon Captureand Storage TechnologyRoadmap calls forgovernments to invest US$54 billion by 2020 tofund 100 Carbon CaptureStorgae projectsworldwide, which wouldcapture carbon dioxideand pipe it undergroundfor long-term storage. 
CO2-EatingBacteriaUS researchers havegenetically modifiedbacteria to eat carbondioxide and produceisobutyraldehyde, whichcould be a great fuelalternative to gasoline.The modified bacteria arepowered by sunlight,which allows greenhousegases to be recycled intouseful chemicalfeedstock.
Support Those Who Care Support government policies which promote greenhouse gas emission reduction & capture. Support companies that operate with Triple Bottom Line business practices. Reduce your own consumption of fossil fuels.
Sources  Recycling CO2 to make plastic 28 July 2010 http://www.rsc.org/chemistryworld/News/2010/July/28071001.asp  Capturing carbon with copper 15 January 2010 http://www.rsc.org/chemistryworld/News/2010/January/15011001.asp  Trillions for CCS to fight climate change 21 October 2009 http://www.rsc.org/chemistryworld/News/2009/October/21100901.asp  Bacteria turn carbon dioxide into fuel 15 November 2009 http://www.rsc.org/chemistryworld/News/2009/November/15110901.asp  Carbon dioxide http://en.wikipedia.org/wiki/Carbon_dioxide#cite_note-0  U.S. Environmental Protection Agency http://www.epa.gov/climatechange/basicinfo.html  350.org http://www.350.org/en/about/science