Credits are the tax expenditure of most value to the taxpayer in that they are direct reductions of taxes owed. (educationnext.org)
I ask myself, is population control a much higher quality form of sacrifice than direct reduction of CO2 emissions? (dotearth.blogs.nytimes.com)
COTAP does not support the use of offsetting by entities which plan to do nothing about eventually making direct reductions to their emissions, nor do we support the use of carbon offsets as a way to compensate for increasing one's emissions. (cotap.org)