Scientists deploy a 24-armed secret weapon to save California’s kelp forests

3 days ago by savvie to c/climate

Team works to restore the sunflower sea star as 95% of these key underwater ecosystems have been decimated along the Pacific

The underwater landscape here was once dominated by towering kelp forests. Often described as the redwoods of the sea, kelp can grow taller than a 10-story building at rates of up to 2ft per day. These dense aquatic canopies form a critical habitat for thousands of marine species and contribute to the ocean’s ecological engine that produces roughly half of the oxygen on Earth.

They are also a crucial defense against global heating. Worldwide, kelp forests sequester approximately 200m tons of carbon dioxide every year by pulling large amounts of planet-warming emissions out of the atmosphere, which they use to grow.

AbouBenAdhem 6 points 3 days ago

Scientists deploy a 24-armed secret weapon

Is this how environmental initiatives have to be framed now to survive Trump’s war on science?

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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world.  About 1C of total warming.  Second chart:  about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability.  Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases.  About 0.5C of cooling with large error bars from SO2.

Recommended actions to cut greenhouse gas emissions in the near future:

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