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Biogeochemistry

Biogeochemistry

    • Marine carbonate chemistry Featured Article Marine carbonate chemistry Marine carbonate chemistry

      The ocean represents the largest surficial carbon reservoir (~38,000 Pg C) of Earth's carbon cycle. The mean concentration of inorganic carbon in the ocean is about 2.3... More »

    • Mercury Featured Article Mercury Mercury

      Mercury is a chemical element that occurs naturally in the environment and exists in several forms.  Previous Element: Gold Next Element:... More »

    • Calcium Featured Article Calcium Calcium

      Calcium is the chemical element with atomic number 20; it has an atomic mass of 40.078 atomic mass units (amu). The chemical symbol for calcium is Ca. Calcium is a soft gray... More »

    • Krebs cycle Featured Article Krebs cycle Krebs cycle

      The Krebs cycle, also known as the citric acid cycle or the tricarboxylic acid cycle, is one of the most important reaction sequences in biochemistry. Not only is this series of... More »

    • Health effects of nickel Featured Article Health effects of nickel Health effects of nickel

        Pure nickel is a hard, silvery-white metal, which has properties that make it very desirable for combining with other metals to form mixtures called alloys. Some... More »

    • Arctic Mercury Cycling and Ice Cover Featured Article Arctic Mercury Cycling and Ice Cover Arctic Mercury Cycling and Ice Cover

      Eggs Show Arctic Mercury Cycling May Be Linked to Ice Cover An international research team working with National Institute of Standards and Technology (NIST) scientists at the... More »

    • Acid sulfate soils Featured Article Acid sulfate soils Acid sulfate soils

      Main source: K.Ljung, F.Maley, A.Cook & P.Weinstein. Acid sulfate soils and human health. A Millennium Ecosystem Assessment. Environment International 35 (8), 1234-1242.... More »

    • Extremophile Featured Article Extremophile Extremophile

      An extremophile is an organism adapted to unusual limits of one or more abiotic factors in the environment. Some of the extreme conditions are temperature, pH, high salinity, high... More »

    • Zinc Featured Article Zinc Zinc

      Previous Element: Copper Next Element: Gallium ... More »

Recently Updated
Antarctic Bottom Water Last Updated on 2012-05-21 at 12:33 Antarctic Bottom Water (AABW) is a type of water in the seas surrounding Antarctica with temperatures ranging from 0 to -0.8oC, salinities from 34.6 to 34.7, and a density... More »
Mercury Last Updated on 2012-05-17 at 11:42 Mercury is a chemical element that occurs naturally in the environment and exists in several forms.  Previous Element: Gold Next Element:... More »
IPCC Fourth Assessment Report, Working Group I:... Last Updated on 2012-05-07 at 16:13 Table of Contents Executive Summary 7.1 Introduction More »
Climate change in relation to carbon uptake and carbon... Last Updated on 2012-05-07 at 12:44 This is Section 14.10 of the Arctic Climate Impact Assessment. Lead Author: Glenn P. Juday; Contributing Authors: Valerie Barber, Paul Duffy, Hans Linderholm, Scott Rupp,... More »
Carbon cycle Last Updated on 2012-05-07 at 11:29 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... More »
Calcium Last Updated on 2012-04-07 at 10:41 Calcium is the chemical element with atomic number 20; it has an atomic mass of 40.078 atomic mass units (amu). The chemical symbol for calcium is Ca. Calcium is a soft gray... More »
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