E&E News Greenwire

September 24, 2021
Americans have been draining wetlands for farming and development since Colonial times.

But climate change may reverse that tide — from destruction to restoration.

Federal scientists are studying whether heat-trapping carbon dioxide can be sucked out of the atmosphere and sequestered in restored salt marshes, sea grass beds and mangrove swamps. And those wetlands can in turn protect communities along the coast from rising seas and fierce, frequent climate-driven storms.

“The concept that’s forming is that what we need to do is massive-scale ecosystem restoration as soon as possible to begin absorbing as much carbon dioxide as we can and diminish the amount of overshoot that we have in atmospheric greenhouse gases this century,” said Kevin Kroeger, a research chemist at the U.S. Geological Survey’s Woods Hole Coastal and Marine Science Center.

Across the Lower 48 states, wetlands hold at least 3.2 billion metric tons of CO2 equivalent, by one estimate — roughly half the country’s net total greenhouse gas emissions in 2019.

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Mongabay

August 31, 2021
Hurricane Ida hit New Orleans and surrounding areas in the U.S. state of Louisiana this past Sunday, serving as a grim reminder of the power of coastal storms — which are predicted to increase as the climate crisis rolls onward.

Scientists and engineers have known for some time that wetlands (such as dense mangroves, tree-studded swamps, and grass-covered marshes) protect exposed coastlines and coastal cities from storms. But for places like London, Tokyo, New York and 19 of the world’s largest cities built around estuaries — the wave-sheltered places where freshwater meets the sea — wetlands may be their silent superman.

Wetlands can reduce flood levels from storms by up to 2 meters (6 feet) and avoid $38 million in flooding damages per estuary, according to a new study published in the journal Environmental Research Letters.

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The New York Times

August 29, 2020
The world's largest wetland is ablaze, but the fire is often invisible.

In Brazil's Pantanal, the vegetation compacted under the marshy flood water during the wet season dries out as ponds and lagoons evaporate, leaving flammable deposits underground that can continue to smolder long after visible flames die down.

Firefighters across Brazil are battling raging towers of flames from the Amazon rainforest to the Cerrado savannah, but the fires beneath their feet are a particular challenge in the Pantanal. The only way to combat an underground fires is to dig a trench around it, said state firefighter Lieutenant Isaac Wihby.

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The Japan Times - OpEd

February 8, 2020
It’s called the Extinction Wing. Located in a dark corner of the Paris Museum of Natural History, it houses a haunting collection of species that have long vanished from the natural world. With biodiversity declining faster than at any time in human history, what size museum will future generations need?

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