Article discussing what liquefied natural gas is, the liquefaction process, its history, how it is transported and stored, and safety considerations. (Published: September 13, 2011)

Facts about the health hazards associated with lead, where it can be found, when it is the most hazardous, how to check family members and your home for lead, and issues with older homes and with renovating. Includes links to numerous...

Explains what hydrocarbons are, the different types, and their molecular configurations. (Published: October 19, 2006)

Article explaining what halocarbons are, where they occur in nature as well as man-made sources, how they are used, and their negative environmental impact. (Published: October 28, 2011)

Explains what differentiates ferns from other plants, their physical characteristics, taxonomy, life cycle, how they evolved, and where they occur.

Scientific article discussing the evolutionary processes involved when an insect species splits into two other distinct species. (Published: February 28, 2011)

Read about environmental law and how communities are affected by environmental concerns.

Describes what cement is, where it comes from, uses, and possible substitutes.

Article on the bumblebee. Covers physical features, life in a colony and as a pollinator, and threats to its survival. Includes links to additional resources. (Published: April 14, 2008)

Detailed information about bed bugs: how to identify them, treating and preventing infestations, physical features, life cycle, and misconceptions about bed bugs. Includes links to additional resources. (Published: December 13, 2010)

Information about the element, Mercury, atomic number 80. Covers physical and atomic properties, where it is found, and health-related regulations. Also discusses its three main forms, uses for mercury, ways it spreads throughout the...

Article explaining what ozone is, how it forms in the atmosphere, and the environmental problems it creates. (Published: August 22, 2008)

The world's glaciers and ice sheets are melting according to this extensive report. It makes recommendations on how to monitor this situation, explains what we know about the past when there was much less ice in the world, describes what...

Information about the polar bear: physical characteristics, behavior, life cycle, distribution, threats to their survival, conservation efforts, etc. (Published Sept. 7, 2011)

Defines heavy metals, describes physical and chemical properties, discusses how heavy metals find their way into plants and animals, and the negative impact they have.

Explains what fungi are, the different classification groups, their morphology, how they reproduce, and their important place in the biological world. (Published: December 23, 2008)

Explains what asphalt is, its properties, and how it is produced.

The ways in which animals have adapted so as to survive in a desert environment are described in this article. Mechanisms that humans have to help them cool themselves in a desert are also explained. (Published: December 17, 2009)

The global impact of decades of environmental pollution is described and the implications this has for the future survival of life on our planet. (Updated: January 26, 2012)

Explains what air pollution is, countries with the worst occurrences of it, the history of air pollution, how air pollutants are dispersed and how scientists study this phenomenon, sources of air pollution, the health impact, indoor air...

Explains what lightning is, how it is created, what happens inside thunderstorms, how lightning develops during a storm, types of lightning, how individuals and groups can stay safe, chances of being struck by lightning, and answers to...

Explains what clouds are, how they are formed, and provides a chart listing the four main categories of clouds in the Earth's atmosphere - cirrus, nimbus, cumulus, and stratus. (Updated: July 25, 2012)

Detailed explanation of the term 'volatility' and how it is used in chemistry and physics. (Updated: January 9, 2012)

Describes the geography of this ecoregion, its biodiversity, its excellent conservation status, the parks and wilderness areas within its boundaries, potential threats, and organizations working to ensure its protection. (Updated August...