consider the paragraph from a January 7, 2016, story on the environment on Bloomberg.com: “CO2 is famously entering the atmosphere about 100 times faster than it did when the planet emerged from the most recent ice age, about 12,000 years ago. The concentration of CO2 in the atmosphere is 35 percent higher than its peak for the last 800,000 years. Sea-levels are higher than they’ve been in 115,000 years, and the rise is accelerating. A century of synthetic-fertilizer production has disrupted the earth’s nitrogen cycle more dramatically than any event in 2.5 billion years” (italics added).
