TwitterGraphic (IMAGE) University of California - San Diego Caption UC San Diego researchers find that more vegetation planted could reduce summer temperatures on average by 0.6 degree Celsius or 1 degree Fahrenheit for 59 percent of the urban population. If building and roof colors were adjusted, in addition to more vegetation added, temperatures can drop by as much as 2.6 degrees Celsius and 4.6 degrees Fahrenheit. Credit UC San Diego Usage Restrictions None License Licensed content 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.