Greenhouse gases must be legally phased out, US scientists argue

A petition calls on the Environmental Protection Agency to regulate emissions under the Toxic Substances Control Act

Greenhouse gas emissions should be subject to legal controls in the US and phased out under the Toxic Substances Control Act, according to a group of scientists and former public officials, in a novel approach to the climate crisis.

Using the TSCA would be one small step for [the US president] Joe Biden, but potentially a giant leap for humankind - as a first step towards making the polluters pay," said James Hansen, a former Nasa scientist, who is a member of the group alongside Donn Viviani, a retired 35-year veteran of the Environmental Protection Agency (EPA).