The only way to control carbon dioxide emissions is to make a car combust less fuel.

NPR: States Push Automakers on Fuel Efficiency

Peat can then be ignited by wildfires or spontaneously combust.

BBC: Climate change 'partly to blame' for sweltering Moscow

The Wankel engine in the Mazda RX-8 houses a rapidly spinning cam that is shaped to compress and combust fuel and air against the inside of an oval chamber.

FORBES: How to get 51mpg from an engine the size of a large turkey.

Moreover, much of the coal he bought from Burlington is low-quality lignite, a brownish fuel one step removed from peat, which can't be transported because it tends to spontaneously combust.

FORBES: Companies, People, Ideas

The second bill would replace the mandatory spending cuts for their full nine-year period, make up the difference with even more tax revenue, and if enacted, cause Rush Limbaugh to spontaneously combust.

FORBES: Senate Proposal For Tax Reform, Part 1: The Buffett Rule Becomes (Proposed) Reality

But the problem is that it takes a lot of natural gas to isolate the hydrogen, leaving many to say that it would be more productive to just combust the natural gas in a conventional engine.

FORBES: Hydrogen-Powered Vehicles Could Emerge From Traffic

Free Radicals found situations to combust and destroy, but in the end, it was only to make room to build the new disrupt the status quo, do more with less, advance society, drive progress rather than have progress drive them.

FORBES: 12 Rules For Game-Changing Entrepreneurs