PRESIDENT OBAMA'S CONTRIBUTION TO EARTH DAY President Obama pushes for a new legislation, including a carbon cap-and-trade system to decrease greenhouse gas emissions, as he visited Trinity Structural Towers, a wind energy plant, in Newton, Iowa, on Earth Day.

TOO MUCH STRESS Chief Executive Officer of Freddie Mac hangs himself in Northern Virginia home.

ANOTHER NEW DEAN Feniosky Peña-Mora, associate provost of the University of Illinois, has been appointed to serve as the next dean of the School of Engineering and Applied Sciences