Growing Problem (IMAGE) Columbia Climate School Caption More than a fifth of New York City’s surface is covered with trees, and many more are being planted. Here, Manhattan’s General Grant Memorial and Riverside Park, seen from an apartment building near 125th Street. Credit Róisín Commane Usage Restrictions Credit must be given. License Original 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.