The Real War on Science
http://www.city-journal.org/html/real-war-science-14782.html
From fear-mongering of genetically engineered organisms to worship of mother earth, the real war on science is from the left because they have the political power.
And also because man has become inured to pessimism. Give someone an optimistic story, they will be of happier mood for an hour. Give someone a pessimistic story, they will be of gloomier mood for days.