To avert the worst effects of global warming we must make changes to our habits and lifestyle. Little things when done by millions of people can make a big difference. While some carbon emissions are unavoidable, many can be significantly reduced with a minimum of effort and cost. Carbon trading empowers anyone to take ownership of their personal greenhouse emissions. | |  To avert the worst effects of global warming we must make changes to our habits and lifestyle. Little things when done by millions of people can make a big difference. While some carbon emissions are unavoidable.  |