Rick McKee's political cartoon "Take that, climate change!" (Opinion, June 30th) shows President Barack Obama trying to plug the carbon output from U.S. smokestacks while those in China and India belch away, making the problem worse. It clearly illustrates the limitations of Obama's announced action to confront climate change.
China is the world's biggest producer of heat-trapping greenhouse gases. Unilateral action by the United States will make only a small dent on the world emissions.
Concerned about climate change, I recently joined 350 other volunteers with Citizens Climate Lobby in Washington, D.C. We asked senators and representatives to tax carbon pollution at the source (mines, wells, or port of entry) and return the proceeds to households.