How does the JCPOA facilitate Iran getting nuclear weapons?
Specifically, the JCPOA was basically an agreement where Iran would give up much of their nuclear program (they said it was civil, the rest of the world was unsure) and nuclear capacity and would accept IAEA inspectors and the installation of various tamper-proof remote monitoring devices. In exchange, numerous sanctions against Iran would be lifted.
https://en.wikipedia.org/wiki/Joint_Comprehensive_Plan_of_Action
It is one thing to say that Iran may not have been as honest as they should have been regarding the nuclear program, or that their missile testing was still a concern. The JCPOA had problems, but it was also all Permanent Five members of the United Nations Security Council -the United States, France, United Kingdom, People's Republic of China, and the Russian Federation - alongside Germany all agreeing that this agreement would prevent Iran's nuclear program from being able to carry out any concerning activity.
The JCPOA was replaced with - absolutely nothing. US sanctions were put back in place, but remember that the Iranian nuclear program was concerning
while sanctions by the P5 were in place. With few sanctions now in place and unclear enforcement of the JCPOA, how has this inhibited the Iranian nuclear program?
I thought you were going to try and be "clever", so I explicitly referred to fly ash which is not a greenhouse gas, can easily contaminate groundwater, and contains many substances in high concentration that are toxic to humans. Regulating fly ash is explicitly within the EPA's statutory responsibility and it was determined that additional regulation for fly ash storage and disposal was needed.