Real men don’t care about the environment.
Real men are not caring.

Yale Project on Climate Change (YPCC) and the George Mason University Center for Climate Change Communication, Global Warming’s Six Americas 2009: An Audience Segmentation Analysis, May 20, 2009 (available at http://www.americanprogress.org/issues/2009/05/pdf/6americas.pdf):

The Dismissive are distinguished by their certainty that global warming is not occurring.  They have thought about the issue a good deal and consider themselves well-informed.  They are quite certain that even if it is occurring, it is not caused by human activities.  They believe scientists are in disagreement on the issue, and quite a few believe that there is a consensus among scientists that global warming is not occurring.  They believe that no one is in danger of being harmed and anticipate that there will be no impacts on people or the environment.  YPCC 67.

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Almost two-thirds of the Dismissive are men (63%), the largest gender split among the six segments.  Their ages closely mirror national averages.  YPCC 71.

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The Dismissive strongly disagree with egalitarian values: they don’t believe wealth should be divided more equally, that government should meet everyone’s basic needs, or that discrimination against minorities is a serious problem.  Seventy percent oppose government programs to get rid of poverty.  YPCC 72.

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ecoAmerica, The American Climate Values Survey, October 2008 (available at http://www.ecoamerica.org/docs/ecoAmerica_ACVS_Summary.pdf):

American men and women have some very different perspectives on the climate crisis.  Women are more likely to believe global warming is real, harmful, that we need to do something and that addressing it will have benefits.  Women also have a more positive view of being environmentally friendly.

Men are less concerned about global warming and more likely to think that addressing it will entail negative personal and economic consequences.  ecoAmerica 11.

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See also Amanda Marcotte, “Global Warming and the Centrality of Irritating Liberals”, pandagon, December 8, 2009 (“I’m forced to conclude that it’s because denying the reality of global warming achieves the central goal of wingnuttery: pissing off the liberals.  And boy, is it effective!  Those liberals sure get steamed when they think about how reckless behavior will result in millions of unnecessary deaths.”) (available at http://pandagon.net/index.php/site/comments/global_warming_and_the_centrality_of_irritating_liberals/); Paul Krugman, “Climate Rage”, The Conscience of a Liberal, December 8, 2009 (“First, environmentalism is the ultimate “Mommy party” issue. Real men punish evildoers; they don’t adjust their lifestyles to protect the planet.”) (available at http://krugman.blogs.nytimes.com/2009/12/08/climate-rage/).