The negative effects of acid rain have started to reverse, according to new research by the United States Geological Survey (USGS).
“Acid rain has been on the decline since the 1970s. Soils are starting to turn around.” said Dr. Gregory Lawrence, the USGS soil and water chemist and lead author of the study, in a phone interview with The Daily Caller News Foundation.
Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide and can, in excessive amounts, have negative effects on plants and animals. Scientists and government agencies contend that the damages and risks of acid rain were actually exaggerated.
Previous studies of the effects of acid rain relied on data that only went up to 2004, whereas the data in this study was extended up to 2014, allowing scientists to study a broader range of samples. Despite the alleged threat of acid rain, forest land in the United States has been expanding rapidly and without interruption according to data collected by Food and Agriculture Organization of the United Nations.