Paul Johnson and others are trying to measure just how much methane is emitting off the ocean floor just off the coast of Washington state. Their estimate is that just one year of methane is ...

Of all the global warming gasses, methane is one of the very worst. Pound for pound, the Environmental Protection Agency says its effect on global warming is 20 times greater than that of ...

Scientists have identified a surprising new mechanism that could be affecting cloud formation and weather patterns in the Arctic: bacteria from the ocean floor. When tiny, plantlike ocean microbes ...