Edward Markey actually said...

Climate change is a global problem that requires a global response. No one country is going to solve it alone.

We have made clear that Iran's continued malign activities in the region... have undermined the expectations set out in the JCPOA.

So it seems that, at this point, the Trump administration has forgotten this.

The President has threatened to 'tear up' the Iran nuclear deal, the Joint Comprehensive Plan of Action (JCPOA).