Methanex 1st argued Calif MTBE ban was not based on scientific evidence and water pollution could be solved by fixing leaking underground storage tanks at gas stations
Calif ban was financial blow to Methanex because CA is largest auto market in US, and other states look to it in setting environmental standards
NAFTA prohibits unfair protection of domestic industries, and Methanex's original complaint alleged US officials acted improperly to protect US ethanol industry
Methanex later amended complaint w/ claim that Davis and ADM officials met secretly during 1998 campaign and ADM contributed over $200,000 to Davis' campaign
Methanex's case filed under NAFTA's Chapter 11 investor protection rules may be example of how private companies can use NAFTA to undermine government efforts to protect environment
Ruling appears to help US because it put onus on Methanex to prove Calif intentionally banned MTBE to hurt foreign producers of methanol