"Environmentalists estimate at least 1 percent of Russia's annual oil production, or 5 million tons, is spilled every year. That is equivalent to one Deepwater Horizon-scale leak about every two months. Crumbling infrastructure and a harsh climate combine to spell disaster in the world's largest oil producer, responsible for 13 percent of global output.
Oil, stubbornly seeping through rusty pipelines and old wells, contaminates soil, kills all plants that grow on it and destroys habitats for mammals and birds. Half a million tons every year get into rivers that flow into the Arctic Ocean, the government says, upsetting the delicate environmental balance in those waters."
There are natural oil leaks, such as off the California coast. But holy cow, 5 million tons per year, and a lot of that heading to sea? I'm not happy about this.