James V. Hansen: “If we phase out coal, the coal mining jobs are gone.”

I think everyone hopes that increased energy efficiency--and that would be encouraged by a higher price on carbon emissions, and renewable energies--could do the job.

We must put a price on carbon emissions, a rising price.

Climate change threatens everyone, especially our children and grandchildren.

The tax is much more honest. Unfortunately, the main reason for a cap is for the sake of pretending that it is not a tax.