by James M. Taylor
This winter shows that global warming is not changing our climate severely. This year's multiple extreme cold outbreaks are a stark reminder that global warming activists have outinely and brazenly exaggerated the effects of global warming. Each new, historic cold snap provides yet another scientific reason to doubt dire predictions about human-caused warming.
Increasing the atmosphere's carbon dioxide content from three parts per 10,000 (0.03%
) to four parts per 10,000 (0.04%) should cause some modest global warming. However, the extremely cold winter reminds us this modest warming is not creating the worldwide climate catastrophe predicted by global warming activists. It also provides appropriate context for the next time we experience a heat wave and activists tell us global warming is to blame.
Cold spells, heat waves and extreme weather events will continue to occur as our planet modestly warms. This winter's extreme cold outbreaks illustrate that global warming is not changing our planet's climate severely, as activists claim. To the extent changes are occurring, these are benefiting rather than harming human health and welfare.
James M. Taylor is senior fellow for environment policy at The Heartland Institute, a Chicago think tank that promotes free-market policies.