Climate change and hydropower generation: the Latin America case

According to news published by the World Meteorological Organization in February 2014, parts of the world have witnessed a series of extreme weather conditions in the first six weeks of 2014, continuing a pattern that was set in December 2013.

Much of the U.S. has experienced cold waves and major winter storms, whilst California remains gripped by drought. The United Kingdom has seen its wettest December-January period on record, with severe, widespread and prolonged flooding. A combination of strong winds, storms and high tides caused damage and flooding in other coastal areas of Europe. There has been unusually heavy snowfall in the Southern Alps. Monthly mean temperatures were extremely high from eastern Mongolia to eastern China. In the Southern hemisphere, Australia, Argentina and Brazil experienced extended heat waves.

Source: Japan Meteorological Agency Tokyo Climate Center

In Argentina, the period of unusual heat, which started in December 2013, continued through January and into February, especially in central and northern regions, with a number of local heat records being set. Parts of Brazil experienced the hottest January on record. An energy blackout early February affected six million people and hit eleven states of Brazil, six of which are scheduled to host the 2014 World Cup next June. Apparently a peak of demand caused by a heat wave had the grid down.

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Climate Change Threatens Energy Sector

Transmission tower

Researchers have identified several extreme weather critical issues on energy sector, including disruptions on power-plant and fuel supplies, due to droughts and severe storms. Extreme climate causes major issues to the energy sector by:

  • Increasing air and water temperatures;
  • Decreasing water availability across regions and seasons; and
  • Increasing intensity and frequency of storm events, flooding and sea level rise.

Some adverse effects have been detected:

  • Severe losses on infrastructure: there are higher risks to energy infrastructure located along the coasts thanks to sea level rise, the increasing intensity of storms, Continue reading

Humans responsibility on climate change !!!

Climate Change 2013: The Physical Science Basis. IPCC Working Group, contribution to AR5, September 2013

Published every six years, the IPCC Assessment Reports are the most comprehensive international assessments on the state of climate science. Similar to prior studies, AR5 is the product of a consensus based process combining the most current scientific data with input from more than 800 climate scientists from dozens of countries.

The AR5 alerts on these key messages:

  • Humans are largely responsible for rising global temperatures: global surface air temperatures have risen more slowly in recent years, but warming in the oceans Continue reading