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Yet, it’s had the unintended consequence of ramping up near-term global warming. On March 4, 2009, the skies over the northeast Pacific Ocean were streaked with clouds that form around the particles in ship exhaust. Low-lying ozone persists for a few weeks at most, and methane disappears within a decade.

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The nine planetary Boundaries are: Stratospheric ozone: filters ultraviolet rays (UVR) coming from the sun, which would otherwise place the system is at risk. 2009; Steffen, W., We have 12 years to limit climate change catastrophe, warns UN An IPCC special report on the impacts of global warming of 1.5 °C

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In interviews afterward, Shatner made a plea for the planet as TV hosts tried to steer him toward topics lighter than death and global warming. A half-century later, ex-NASA astronaut José Hernández said that the view aboard the Space Shuttle Discovery in 2009 turned him into “an instant treehugger.”.

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Adding sulfate aerosols to the stratosphere would degrade the ozone layer (thereby increasing global cancer rates) and increase acid rain. Whether the world is warming up to the idea of solar geoengineering wasn’t something the people interviewed for this article could agree on. Keith still leans towards the latter. “I

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