JPL scientist Josh Willis, from NASA's Ask A Climate Scientist campaign, asserts that global warming is not pausing, despite some decades showing slower surface temperature

JPL scientist Josh Willis, from NASA's Ask A Climate Scientist campaign, asserts that global warming is not pausing, despite some decades showing slower surface temperature increases.

Willis points to increased ocean heat trapping and continuously rising sea levels as clear evidence. See [global temperature trends](http://climate.nasa.gov/key_indicators#globalTemp) and [sea level records](http://climate.nasa.gov/key_indicators#seaLevel).

While natural fluctuations occur, human-caused climate change is undeniably progressing. Explore more NASA climate science answers [here](http://bit.ly/1b7rSdL).

Josh Wharton, an accomplished alpinist, faces new challenges from fatherhood and a warming climate. When he and Vince Anderson attempt Peru's Jirishanca via the 2003 Italian route, they confront

Josh Wharton, an accomplished alpinist, faces new challenges from fatherhood and a warming climate. When he and Vince Anderson attempt Peru's Jirishanca via the 2003 Italian route, they confront unprecedented risks. Discover their story, with photos by Drew Smith, originally published in the Spring 2023 Patagonia Journal.

Read the full ascent story: patagonia.com/stories/jirishanca

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