In 2012, the U.S. passed a bill into law prohibiting “operators of civil aircraft of the United States from participating in the European Union’s emissions trading scheme.” That action threatened agreements allowing U.S. carriers’ continued operation in EU airspace.
In a post of 200–300 words, briefly explain the aviation aspects of the ETS and describe whether you think the U.S. was correct in risking a trade war with the EU in passing this bill. Also, include your opinion on whether the ICAO CORSIA plan goes far enough towards emissions control.