Modelling the hydrological cycle in assessments of climate change

Article Abstract:

Too little is known about the hydrological cycle and current climatic models contain too many discrepancies for the long-range impact of rising greenhouse gas levels to be properly evaluated. The hydrological cycle determines how much water is available for economically important needs such as farming, forests and rivers. A comparison of climatic models shows that they are too rife with uncertainties to gauge how greenhouse warming might change the hydrological cycle. Greatly increased international research on the hydrological cycle and more cooperation among climate modellers are needed.

Hydrologic cycle, Water cycle

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Dynamic responses of terrestrial ecosystem carbon cycling to global climate change

Article Abstract:

The world's climate systems and terrestrial ecosystems are interrelated, particularly the exchange of carbon between the atmosphere, vegetation and soils. A new model, focused on the terrestrial carbon sink, shows that the terrestrial ecosystem carbon fluxes strongly influence and respond to climate change and atmospheric CO2 increase.

Carbon cycle (Biogeochemistry), Carbon cycle

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