El valle central de California atraviesa, o mejor dicho, se halla atravesado por una doble de crisis aguda. Además de la pandemia de Covid-19, hoy recibe el humo de los incendios que devoran el área de la Bahía de San Francisco, y que los vientos del Pacífico empujan más allá de las montañas tierra adentro, hasta llegar al valle central.
EHS Executive Director Douglas Fischer is working hard just to keep up. His 17-year-old daughter can run a 5k almost twice as fast as he can, and his 15-year-old son passes him on Nordic skis without breaking a sweat. One thing Douglas really enjoys doing? Running Environmental Health Sciences, pushing good science into public discussion and policy.
La joven de familia mexicana que colidera en Estados Unidos el movimiento Fridays For Future explica la gravedad de crisis climática en la convención del Partido Demócrata.
BOZEMAN, Mont.—Living in the Rocky Mountains, we often joke about our five seasons: Fall, winter, spring, summer and smoke.
A fire begins<img lazy-loadable="true" src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yMzYzNzUwMS9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTYxNTEyMjcyN30.bSsZHiV34NwVxlC_1LSGT_dqBmn8-4sb0S1XGzzdPSA/img.jpg?width=980" id="593d9" class="rm-shortcode" data-rm-shortcode-id="3cc8a8179dc23dfa890aff0ef4831cd2" data-rm-shortcode-name="rebelmouse-image" alt="start of the Bridger Foothills Fire" />
Start of the Bridger Foothills fire, at 4:30p Friday, Sept. 4. (Credit: Ben Alexander)<p>It's also hard to imagine just how much smoke even a modest fire generates – and how quickly a small fire grows into a modest one and from there into a large one. </p><p>On Friday afternoon, Sept. 4, shortly after forecasters issued a red flag warning for the weekend, a small fire started in the foothills near Bozeman. Authorities would later conclude it was caused by a lightning storm that rolled through a week earlier; it smoldered in the duff, undetected, until conditions changed. </p><p>Winds quickly fanned it up to the ridge, and then over the side, as air tankers and smoke jumpers tried to beat it back.</p>
Fire and smoke cover the Bridger Mountains near Bozeman, Mont. on Saturday, Sept. 5. (Credit: Phineas Fischer)<p>And then it exploded. </p><p>Hot winds picked up Saturday afternoon, the flames leapt, and air quality for 200,000 people across a half-dozen counties went from green to yellow to red. </p><p>Smoke season was back.</p><p>And this, recall, is a small fire. The <a href="https://fire.airnow.gov/" target="_blank">Fire and Smoke Map</a>, run by the U.S. Environmental Protection Agency and the U.S. Forest Service, offers a look at the awesome scale of the West on fire – and where your smoke is coming from.</p>
Not coming back<img lazy-loadable="true" src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yMzYzNzUwNC9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTYxNTkxMjUwM30._wXlZLjkWiLhWsS8oicTnRCulEvazkSLmI1bH7y7bnI/img.jpg?width=980" id="0ea74" class="rm-shortcode" data-rm-shortcode-id="a0fbec6d1fdbdf181a867f5c1be65f8f" data-rm-shortcode-name="rebelmouse-image" alt="Bridger Foothills Fire" />
Bridger Foothills Fire. (Credit: Ben Alexander)<p>With structures burning and families evacuating in Bridger Canyon, this is no time for lectures about climate change. </p><p>But I co-teach a course at Montana State University about climate science and policy. We often take students up to the local ski area, Bridger Bowl, towards which the Bridger Foothills Fire is now racing, to talk about changing snow lines and altered landscapes. </p><p>The scientists we take with us always tell us that when (and it is never "if") the Bridger Mountains burn, the Douglas Fir-Twin Flower habitat that exists today is not coming back. The climate has dried and changed too much. We will see, they predicted, something very different.</p><p>Looks like we get to see if they we<sup></sup><sup></sup>re right.</p>
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