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The coral die-off crisis is a climate crime and Exxon fired the gun | Bill McKibben

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Bill McKibben: This week were staging protests on the crime scene of the worlds affected reefs to send a signal that were not going to let fossil fuel firms get away with murder

Coral reefs are probably Earths most life-packed ecosystem; those whove had the privilege of diving in the tropics know the reef as an orderly riot of colour and flow, size and shape.

Which is why a white, dead reef is so shocking as shocking in its way as a human corpse lying on the street, which still takes the form of the living breathing person it used to be, but now suddenly is stopped forever, the force that made it real suddenly and grotesquely absent.

When a body falls on the street, the police come to investigate. Did this person die of natural causes, or was there foul play involved? When a reef dies, we ask the scientists. And this year theyve told us the answer in no uncertain terms.

The amazingly rapid die-off of a huge percentage of the worlds coral reefs is not a sad but normal tragedy; its a crime. Perhaps the fastest, most widespread crime of the global warming era.

Vast swaths of coral were bleached this spring, much of the damage done in a matter of weeks as a wave of warm water swept across the Pacific and west into the Indian Ocean. The immediate culprit was clear: the ongoing rise in global ocean temperatures that comes from climate change. But thats like saying he was killed by a bullet. The important question is: who fired the gun?

We know the biggest culprits now, because great detective work by investigative journalists has uncovered key facts in the past year. The worlds biggest oil company, Exxon, knew everything there was to know about climate change by the late 1970s and early 1980s. Its scientists understood how much and how fast it was going to warm, and how much damage that was going to do. And the company knew the scientists were right: thats why they started climate-proofing their own installations, for instance building their drilling rigs to accommodate the sea level rise they knew was coming.

What they didnt do was tell the rest of us. Instead, they and many other players in the fossil fuel industry bankrolled the rise of the climate denial industry, helping fund the thinktanks and front groups that spent the last generation propagating the phoney idea that there was a deep debate about the reality of global warming. As a result, weve wasted a quarter century in a phoney argument about whether the climate was changing.

Had Exxon and its ilk merely told the truth, that argument would have been over: no one would have accused them of being climate alarmists. We would have gone to work to solve the problem. Our work wouldnt be over by now, but it would be well advanced; the atmospheric level of CO2 wouldnt have topped 400 parts per million, and the temperature rise wouldnt be flirting with 1.5C. There would be coral bleaching, but there likely wouldnt be a coral massacre on the scale weve seen this year.

Which means that the victims should be angry as well as sad. The people who depend on the reefs for food, and for shelter from the waves; the economies that count on tourist dollars; the people who take spiritual sustenance from the ongoing drama beneath the waves. The reefs cant be made whole again: if they recover at all it will be slowly, and in the face of ongoing warming that seems unlikely. But at the very least, the nations that sustained this damage should be compensated. Exxon and its brethren made record profits in the last decades of denial and deceit; that money should rightfully go to pay for the damage it caused, and to build the energy systems that can power our lives without destruction.

We need to remember that theres nothing natural about this horror. It was caused, as so many crimes are, by greed. And that greed is ongoing Exxon continues to search for more hydrocarbons, and to reject even modest changes to its policies.

Thats why were wrapping crime scene tape this week around those bleached coral heads, those dead staghorns. Thats why were taking crime scene photos with underwater cameras. Thats why were protesting on the reefs. Were not going to let them get away with murder.

Originally found athttp://www.theguardian.com/us