In both the nitrogen oxide and mercury rules, the Environmental Protection Agency is correctly leaving permit allocation decisions to the states.

In both the nitrogen oxide and mercury rules,Maryland shouldconsider using auctions as a means of raising revenue to reduce economically harmful tax rates.

Ethanol is a losing proposition, but fuels from algae may be the path to cutting our dependence on imported oil.

Contrary to popular belief, vastly expanding our use of ethanol fuel would increase food prices, greenhouse gas emissions, and local air and water pollution.

The first priority of climate policy should be putting a domestic emissions regulation system in place.

It is important that the EPA maintaina federalist approach of state flexibility and that the states consider using auctions as a means to raise targeted revenues.

A funny thing happens on weekends in most cities. Nitrogen oxide emissions go down by 10 to 40 percent, but ozone smog levels stay the same or rise.

As studies show that ethanol from corn may not be the answer, funds should be redirected toward other efforts in energy security and climate change.