With Lisa Jackson, the head of the Environmental Protection Agency, stepping down, President Barack Obama is losing one of the few people left in Washington who was willing to speak up about global warming and to push for significant measures to curb its impact. During her tenure, Ms. Jackson was frequently denounced by GOP members of Congress and all too often reined in by Obama. Despite his and Congress’ failure to pass legislation addressing global warming, Ms. Jackson advanced a regulatory agenda to pick up some of the slack.
She managed to see that fuel efficiency standards will increase by 2025, enact stricter pollution controls that must be met before any construction of new coal-fired power plants, and established EPA’s “endangerment finding,” bringing carbon dioxide and five other greenhouse gases (GHGs) under the Clean Air Act. Her departure, however, highlights the failings of the Obama administration to address global warming in a significant way. In his second term, the president can change that by pushing to enact a carbon tax.
A carbon tax would place a fee on polluters that emit GHGs like carbon dioxide, methane, and nitrous oxide. It should be applied at major sources of GHG emissions: coal-fired power plants, petroleum refineries and importers, natural gas processors, and cement, steel, and GHG-intensive chemical plants. This tax would prod us away from dirty fossil fuels and toward clean energy alternatives to avert global warming while raising considerable revenue.
Global warming is happening, whether or not lawmakers on Capitol Hill want to acknowledge it. Unfortunately for the rest of us, the consequences of ignoring it are dire.
Given the already lackluster recovery, the future economic devastation from global warming looms many times larger than any “fiscal cliff.” A 2006 report from British economist Nicholas Stern estimated that if global temperatures increase 2-3 degrees Celsius in the next 50 years we risk losing up to 20 percent of global GDP – a loss similar to that of the Great Depression.