A new analysis of oil and gas pipeline safety in the United States reveals a troubling history of spills, contamination, injuries and deaths.

Analysis by Richard Stover, Ph.D., and the Center for Biological Diversity

This time-lapse video shows pipeline incidents from 1986 to 2013, relying on publicly available data from the federal Pipeline and Hazardous Materials Safety Administration. Only incidents classified as “significant” by the agency are shown in the video. “Significant” incidents include those in which someone was hospitalized or killed, damages amounted to more than $50,000, more than 5 barrels of highly volatile substances or 50 barrels of other liquid were released, or where the liquid exploded or burned.

According to the data, since 1986 there have been nearly 8,000 incidents (nearly 300 per year on average), resulting in more than 500 deaths (red dots on the video), more than 2,300 injuries (yellow dots on the video), and nearly $7 billion in damage.