Renewable, alternative to mitigate climate change


The Intergovernmental Panel on Climate Change (IPCC) is the leading international body for the assessment of th...


The Intergovernmental Panel on Climate Change (IPCC) is the leading international body for the assessment of this phenomenon, and was established by the United Nations Program for Environment (UNEP) and the World Meteorological Organization (WMO), in 1988, to provide the world with a clear scientific view on the current status and potential environmental and socioeconomic impacts.

Brazilian researcher Moreira says that although the use of these energies at high speeds has increased in the last four years, should continue to grow at a rate of two digits per year to show impacts on climate change.

"Some renewables such as solar and wind power grew 10% per year. In 2011, almost half of the energy investment was made for renewables. However, emissions of greenhouse gases are increasing and ever faster, as seen in the last three years, "said Moreira.

The IPCC expert argues that the main option for reducing greenhouse gas emissions quickly, would improve energy efficiency, but in the real market penetration has been lower than expected. He also talks about other options such as__ carbon capture and storage, and nuclear power, since according to studies of the same body, we need all options to mitigate the phenomenon.

"Some of the alternative energy sources promising for generating electricity are photovoltaic, wind and solar. For the low-temperature heat can be used for solar collectors and high temperature biomass could be used as well as the displacement of liquid fossil fuels, the only source available in the market today for this purpose, "Moreira highlights .

Great potential

As for electricity generation in Latin America, the expert said that this region has a huge hydroelectric potential is being used with a number of advantages, such as low production cost and a green energy source (very low greenhouse gases emission).

"For high-temperature heat, most countries can take advantage of the tropical climate and use biomass. In order to displace the use of liquid fossil fuel, in most countries can produce ethanol from sugar cane, and biodiesel, mainly palm oil, "says the researcher.

However, one must consider that the energy use efficiency can be improved significantly, as in all developing countries. Therefore, modern technologies for equipment (electric motors, home equipment, new industrial processes), should be improved as well as the energy efficiency of vehicles.

Achieving this and optimizing "the use of hydropower, wind and solar energy can still improve the amount of energy per capita and, in that sense, the simultaneous decrease of the growth in emissions of greenhouse gases."

This IPCC expert, which will be at the week of Science, Technology, Arts and Culture to be held from 23 to 26 October at the UN in Palmira, eventually concluded that global society must act strongly to mitigate climate change.

"Since the production and use of energy are responsible for 60% of global warming, this sector will have to reduce their emissions and pay for this action. Therefore, if the energy sector actors are intelligent, they must invest in all available options that can reduce emissions of greenhouse gases, "he says Moreira.

The Intergovernmental Panel on Climate Change (IPCC) was awarded the Nobel Peace Prize in 2007 for their efforts to build up and disseminate greater knowledge about climate change caused by man, and to lay the foundations for the measures needed to counteract such change.

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By Colombia's National University News Agency

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