Douglas Bevington’s The Rebirth of Environmentalism comes at a very important moment. The oil spill in the Gulf of Mexico, the largest in U.S. history. Then another in Michigan. Heat waves and record temperatures across the South and along the East Coast. Massive fires in Russia, that ripped into wheat supplies and sent prices soaring. Floods in Pakistan that have displaced at least 20 million people, one-fifth of that country’s population.