Former Vice President Joe Biden unveiled a $5 trillion climate change proposal that would roll back Trump tax cuts to help fund investments – amid pressure from rivals to match Rep. Alexandria Ocasio-Cortez's 'Green New Deal.'

Biden's plan would call for net zero emissions by 2050 and what Biden calls a '100 per cent clean energy economy.'

The Green New Deal sets the goal of an electric grid powered by 100 per cent renewable energy by 2030.

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