Sarah Butler and Lauren Nichols, Duke University (image) Duke University Share Print E-Mail Caption Research assistants Sarah Butler (left) and Lauren Nichols prepared one of the warming forest test chambers in the Duke Forest in May, 2009. Native tree species are grown in the open-topped chambers in North Carolina and Massachusetts that are heated to 3 degrees Celsius or 5 degrees Celsius warmer than ambient temperatures. Credit Megan Morr, Duke Photography Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.