The United States is the exception among developed countries.
The Ecofiscal Commission says carbon taxes must rise to $210 per tonne of greenhouse gas emissions.
The economic cost of limiting global warming to 2 degrees Celsius would probably exceed the benefits.
Some computer models predict catastrophic results, other projections are much more benign.
Recently, city councils in North Vancouver and West Vancouver declared a “climate emergency.”
Prime Minister Trudeau said the federal carbon tax will help protect Canadians from extreme weather.
During a warming trend, land warms faster than the oceans.