gennaio, 2014

Climate Change

Climate Change

Human Effects on Climate Human activities are continuing to affect the Earth’s energy budget by changing the emissions and resulting atmospheric concentrations of radiatively important gases and aerosols and by changing land surface properties. Previous assessments have already shown through multiple lines of evidence that the climate is changing across our planet, largely as a result of human...

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Water Resource System

Water Resource System

Modeling Water Resource Systems under Climate Change: IGSM-WRS Three Questions with Ken Strzepek Why did you find the need to add a Water Resource System (WRS) component to the IGSM? Fresh water sources throughout the world are experiencing considerable stress because of an increasing global population and recent droughts, floods and other effects consistent with increased risks associated with...

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CO2 emissions

CO2 emissions

CO2 emissions: cleaner vans by 2020 The CO2 emission limit for new light commercial vehicles sold in the EU is to be reduced from 203 g/km today to 147 g/km by 2020, under draft legislation approved by the European Parliament on Tuesday. The text, already informally agreed with EU ministers, also calls for the introduction of more reliable CO2 emission testing methods. “We achieved a result...

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Climate Change

Climate Change

Increasing greenhouse gas concentrations will have many effects Greenhouse gas concentrations in the atmosphere will continue to increase unless the billions of tons of our annual emissions decrease substantially. Increased concentrations are expected to:     Increase Earth’s average temperature Influence the patterns and amounts of precipitation Reduce ice and snow cover, as...

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