Rate This

Average: 4.3/5

Recent Comments

Greg Osmond
May 10, 2013 09:05PM

I was watching two Minke whales for one hour today near my home in Woody Point, ...
Mandy Huang
May 10, 2013 06:05AM

Jujiang Perlite Factory of China. Jujiang Perlite Factory is located in Pingqi...
Melvin Lusterio
May 09, 2013 08:05PM

The Good Force be with you! Well done, Team Curiosity! Keep it up! Live fo...
shaymaa elgbaly
May 09, 2013 01:05AM

amazing !

New Members

fae eva
May 7, 2013
Devin Knight
May 7, 2013
asmar husein
May 7, 2013
Nur Azarina Khamis
May 7, 2013
Françoise L'HEVEDEER
May 6, 2013

 
Expert-reviewed information about the Earth.  For everyone.

    • Petrochemicals Featured Article Petrochemicals Petrochemicals

      Petrochemicals are chemical products made from the hydrocarbons present in raw natural gas and petroleum crude oil. The largest petrochemical manufacturing industries are to... More »

    • Algae Featured Article Algae Algae

      Introduction Algae comprise a diverse group of typically autotrophic organisms, ranging from unicellular to multicellular forms. The largest and most complex marine forms... More »

    • Biomass Featured Article Biomass Biomass

      Biomass is a term in ecology for the  mass of living organisms in a given ecosystem.  Biomass can refer to the living stock of species in a given habitat, but can... More »

    • Panamá Featured Article Panamá Panamá

        Panama is a nation of three-and-a-half million people, located between Costa Rica to the north and Columbia to the south. Panama connects the continental land... More »

    • Sulfur Featured Article Sulfur Sulfur

      Sulfur (alternatively spelled sulphur) is the chemical element with  atomic number 16. The chemical symbol S is used in formulae and abbreviations. Sulfur has high abundance... More »

    • Serengeti Featured Article Serengeti Serengeti

      The Serengeti is a plain immediately south of the equator in eastern Africa covering over 30,000 square kilometers (12,000 square miles) east of Lake Victoria in northwestern... More »

    • Herbivore Featured Article Herbivore Herbivore

      Introduction A herbivore is an animal that obtains its energy and nutrients by feeding on plants.  Different types of herbivores eat different plant parts.  For... More »

    • Ecological pyramids Featured Article Ecological pyramids Ecological pyramids

      Ecological pyramids are diagrams that illustrate how ecologically important factors, such as energy, biomass, and population size, vary between trophic levels in an ecosystem.... More »

    • Refugia Featured Article Refugia Refugia

      Refugia (singular Refugium) are geographical locations where natural environmental conditions have remained relatively constant or stable during times of great environmental... More »

Recently Updated
Redwood Sorrel Last Updated on 2013-05-20 at 18:13 Redwood Sorrel (Oxalis oregana) Redwood Sorrel is in the Oxalidaceae, the wood sorrel family, a relatively small family with three genera and 875 species of mostly tropical... More »
Suez Canal, Egypt Last Updated on 2013-05-20 at 13:48 The Suez Canal is located in Egypt west of the Sinai Peninsula, connects Port Said on the Mediterranean Sea with the port of Suez on the Red Sea, and provides an essentially... More »
Strait of Hormuz Last Updated on 2013-05-20 at 13:48 Located between Oman and Iran, the Strait of Hormuz (26°34'0.00"N,  56°15'0.00"E) connects the Persian Gulf with the Gulf of Oman and the Arabian... More »
Dollar Value of Ecosystem Services Last Updated on 2013-05-20 at 05:42 The value of ecosystem services typically goes unaccounted for in business and policy decisions and in market prices. For commercial purposes, if ecosystem services are... More »
Biodiversity Glossary Last Updated on 2013-05-20 at 04:41 Introduction A biodiversity glossary is presented herein, to aid in understanding the many facets of a topic important to scientists, policy makers and the public.... More »
Estimation of adult human biomass Last Updated on 2013-05-20 at 04:30 The energy requirement of species at each trophic level is a function of the number of organisms and their average mass. The study estimates global human biomass, its... More »
  • Articles Articles
  • Blog Blog Posts
  • Gallery Galleries
  • News News
  • Resources Resources
  • Media Videos
  • Include Content from all Sub-Sections
Type Title Author Date
Retrieving data...