The present political approach is to set carbon emission reduction goals for 2025 or 2050. (dotearth.blogs.nytimes.com)
with its highly optimistic assumptions about the future availability of renewables, nuclear, and CCS, the mid-century carbon emission reduction goal could only be achieved if the annual growth in GDP per capita between now and 2050 were to slow to a rate of 1 % per year. (rogerpielkejr.blogspot.ru)
So far, several Canadian provinces and territories have decided how they are going to achieve their share of Canada's overall carbon emissions reduction goal. (sciencemag.org)