The far north is burning—and turning up the heat on the planet

The Arctic and surroundings are being transformed from carbon sink to carbon emitter.

The Arctic and surroundings are being transformed from carbon sink to carbon emitter.
Fire-damaged trees in a boreal forest near the Saskatchewan River in Alberta, Canada. As northern forests burn, they’re releasing massive amounts of carbon.

The far north is both a massive carbon sink and a potent environmental time bomb. The region stores a huge amount of CO2 in boreal forests and underlying soils. Organic peat soil, for instance, covers just 3 percent of the Earth’s land area (there’s some in tropical regions, too), yet it contains a third of its terrestrial carbon. And Arctic permafrost has locked away thousands of years’ worth of plant matter, preventing rot that would release clouds of planet-heating carbon dioxide and methane.

But in a pair of recent papers, scientists have found that wildfires and human meddling are reducing northern ecosystems’ ability to sequester carbon, threatening to turn them into carbon sources. That will in turn accelerate climate change, which is already warming the Arctic four and a half times faster than the rest of the world, triggering the release of still more carbon—a gnarly feedback loop.

LINK: https://arstechnica.com/science/2023/05/the-far-north-is-burning-and-turning-up-the-heat-on-the-planet/

As California’s wells dry up, residents rely on bottled water to survive

In drought-parched Central Valley, thousands rely on trucked and bottled water as they wait for new wells

As California’s wells dry up, residents rely on bottled water to survive
Bryce Johnston of Big River Drilling works on drilling a new water well in August. (Matt McClain/The Washington Post)

Wells are running dry in California at a record pace. Amid a hotter, drier climate and the third consecutive year of severe drought, the state has already tallied a record 1,351 dry wells this year — nearly 40 percent over last year’s rate and the most since the state created its voluntary reporting system in 2014. The bulk of these outages slice through the center of the state, in the parched lowlands of the San Joaquin Valley, where residents compete with deep agricultural wells for the rapidly dwindling supply of groundwater.

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