David Frum : Carbon dioxide emissions worldwide are at record levels . To strike a balance against climate change , we should enact a carbon tax , Frum says . He says it would raise revenue , allow for middle - class tax relief , stimulate economy .
David Frum : Carbon dioxide emissions worldwide are at record levels . To strike a blow against climate change , U.S. should enact a carbon tax , Frum says . He says it would provide revenue , allow for middle-class tax relief , spark economy .