A carbon footprint is the measure of the amount of greenhouse gases, measured in units of carbon dioxide, produced by human activities. A carbon footprint can be measured for an individual or an organization, and is typically given in tons of CO2-equivalent (CO2-eq) per year.
One of the most compelling fields in whale biology is the study of communication and culture. Odontocetes, or toothed whales such as dolphins and sperm whales, propagate sound waves to echolocate, allowing them to detect objects and organisms with sonar.
Ice is the dominant feature of Arctic marine ecosystems. It continuously sculpts the coastal landscape and acts as a major limiting factor to all biological activity.
The International Council for Science (ICSU), in conjunction with the World Meteorological Organization (WMO), has designated 2007-2008 an International Polar Year. Activities are designed to focus the attention of the public and the scientific community on the need for greater understanding of the complex interrelationships…
The following information focuses primarily on freshwater, inland wetlands and provides brief information about tidal, coastal, estuarine wetlands. It is important to note, that whether inland or coastal, there are several federal agencies that have special interest in and jurisdiction over wetlands…
All life is based on the element carbon. Carbon is the major chemical constituent of most organic matter, from fossil fuels to the complex molecules (DNA and RNA) that control genetic reproduction in organisms. Yet by weight, carbon is not one of the most abundant elements within the Earth’s crust.
