Schumer:
https://grist.org/climate/38-countries-have-declared-a-climate-emergency-under-president-biden-should-the-us-be-next/
The Act:
Under the National Emergencies Act of 1976, a declaration of national emergency temporarily grants the president at least 140 special powers.
The reasons for declaring a national emergency and the provisions to be applied during that emergency are solely and entirely up to the president.
Under the National Emergencies Act, presidents are required to identify the specific powers and provisions to be activated by the declaration of emergency and to renew the declaration annually. While the law grants the president at least 136 distinct emergency powers, only 13 of them require a separate declaration by Congress.
During declared national emergencies, the president can—without the approval of Congress—freeze the bank accounts of Americans, shut down most types of electronic communications inside the United States, and ground all non-military aircraft.
https://www.thoughtco.com/national-emergency-definition-examples-4583021
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there doesn't seem to be anything here