Wildfires threaten unique critters on Australian 'Galapagos'

A burned koala awaits treatment at a refuge after being rescued by wildlife officials at Kangaroo Island Wildlife Park. Devastating wildfires over recent days have undone decades of careful conservation work on Kangaroo Island and have threatened to wipe out some of the island’s unique fauna altogether.

Australia is on fire. Not all of it — but so far, flames have engulfed some 12 million acres, more than the land mass of Vermont and New Hampshire combined.

Inhabitants of the hot, dry continent learned long ago that coping with wildfires is a part of life. But the conflagrations that have swept across large parts of Australia are unprecedented in their size and ferocity, with consequences that stagger the imagination. Hundreds of homes have burned, and more than 140,000 people have been told to evacuate. More than two dozen have died.

Some Australians have literally been driven into the sea, where they stood in the surf or sat on boats waiting for the flames to subside. More than 1,000 residents of one coastal area had to be evacuated by ship.

Hundreds of millions of animals are feared dead — and some species are likely to go extinct. “This is not a bush fire,” one government official said. “It’s an atomic bomb.”

Rain fell in some of the affected areas Monday, but it promised only a brief pause. Australia’s annual fire season normally doesn’t peak until later.

It’s not a mystery why events like these have grown more common and more destructive: Global temperatures have crept upward. Last year is expected to rank as the planet’s second-hottest year on record, after 2016.

No individual weather episode can be definitively tied to global warming, but scientists agree it raises the frequency of extreme weather.

The relentless buildup of carbon dioxide and other greenhouse gases has trapped heat and warmed the planet, with a vast array of harmful results. Oceans have risen. Polar ice is melting. Glaciers are shrinking. And land is burning.

The need for action to curb greenhouse gas emissions is urgent. But the Trump administration has gone the other way, pulling out of the Paris climate accord, scrapping the Obama administration’s Clean Power Plan and weakening rules on auto emissions. The head of the Environmental Protection Agency, Andrew Wheeler, is a former coal industry lobbyist.

There are steps to be taken to slow and eventually reverse the greenhouse gas accumulation: Use less coal, oil and natural gas. Encourage their replacement with solar, wind and nuclear power. Increase the fuel economy of cars and trucks, and expand the number of electric vehicles. Take available measures to capture carbon dioxide, and develop better ones.

A tax on carbon, which would raise the price of fossil fuels to reflect the damage they do, would stimulate all these advances. It would provide an advantage to the least expensive alternatives. Phased in over time, it would minimize economic disruption by giving businesses and individuals time to adjust. As a sign carried by one Australian evacuee said, “Inaction costs more.”

The needed policies won’t have much effect on the immediate harms and risks caused by climate change — a problem that took decades to emerge and that will take decades to solve.

But that’s no excuse for refusing to change the practices that got us into our current fix.

If we want more of what Australia is suffering, doing more of the same is fine. If we hope to see a better future, we will have to take action to bring it about.

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