The standards, now in a 60-day comment period, cover three types of heavy trucks but would not apply to vehicles built before the 2014 model year.

Some involved new fees, taxes, or bonds, while others didn't dip into voters' wallets. Get a thumbnail sketch of each measure, and its fate at the hands of voters

If EPA's health-based primary standard is reduced from its current level of 75 parts per billion to 60 ppb, which is the low end of what the agency's science advisors have recommended, about 67% of the US population would live in monitored counties that would be out of compliance.

Photojournalists doing environmental stories have been harassed and blocked by federal police for a decade or more when they try to take pictures of federal facilities from public spaces. Now, under a court settlement, the federal government is publicly acknowledging that it is acting illegally when it does this.

SEJ was one of the groups that opposed HR 801, a bill by House Judiciary Chairman John H. Conyers which would allow private journal publishers to copyright scientific articles based on federally funded research.

If Proposition 23 passes, it could disrupt plans for many green companies and their suppliers in CA and around the US — not to mention weakening political will in other states, or at the federal level, for tougher green energy policy.