Fuels that do not produce hazardous exhaust gases

Modern combustion engines become increasingly economical and clean. Engine developers, however, are now facing the technical conflict of whether fuel consumption or exhaust gas emission is to be further reduced. This Gordian ...

US, Canada and Mexico sign clean energy pact

Canada, Mexico and the United States signed a draft agreement Friday to curb greenhouse gas emissions while increasing their energy interdependence.

Filling in gaps in the history of earth's magnetic field

Boulder, Colo., The Marcellus Shale is famous as a formation being explored for natural gas resources. That exploration has also offered some insight into an age-old problem: where was the continent of North America 400 million ...

Nitrous oxide from urine patches in pastures

Commonly known as 'laughing gas' and currently used both in anaesthetics and as a 'legal high', nitrous oxide (N2O) is a powerful greenhouse gas produced in the soil by micro-organisms, especially so on land grazed by animals.

Measuring climate change action

Reducing global greenhouse gas emissions could have big benefits in the U.S., according to a report released today by the U.S. Environmental Protection Agency (EPA), including thousands of avoided deaths from extreme heat, ...

page 8 from 16