CNBC.com's MacKenzie Sigalos brings you the day's top business news headlines. On today's show, CNBC.com's Pippa Stevens breaks down the UN's climate warning and how the bipartisan infrastructure bill could mitigate carbon emissions. Plus, the hacker behind the $600 million Poly Network hack says it was just for fun.

00:00 - CNBC After Hours, August 12, 2021
0:30 - Dow and S&P reach new records
1:30 - How the infrastructure bill addresses climate change
3:22 - Numbers Round

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How Biden's trillion-dollar spending plans address the UN's dire climate warning: CNBC After Hours