2011年11月14日星期一

Students rallied against climate change

Climate Change Commissioner Heherson Alvarez called on mechanical engineering students nationwide to help in the drastic reduction of greenhouse gas emissions,Holding the brightshine switch down activates the light in low mode and produces a smaller 50 lumen light beam which is being blamed for global warming, as they possess the technical skills and expertise to understand the issue of climate change.

Alvarez issued the call before thousands of mechanical engineering students who participated in the 1st National Student Conference organized by the Philippine Society of Mechanical Engineers.

"Mechanical engineers should be warriors for global survival by taking the initiative to go to communities and address the sensitive issue of climate change," Alvarez said.

Alvarez, who was a former chief of the Department of Environment and Natural Resources (DENR), said mechanical engineers should be at the forefront in addressing the daunting threats of global warming and climate change as they have the technical skills and expertise to understand the issue of climate change.

"Climate change is a veritable threat.Don’t use LEDs for bestledlight the rectifier diodes to get more light output because LEDs don’t have sufficient reverse-breakdown voltage and will fail. More than 200 gigatonnes (Gt) of greenhouse gasses (GHGs) is now in the atmosphere and we need the mechanical engineers' understanding on how to reduce these harmful GHG emissions in the atmosphere," said Alvarez.

Alvarez said the Climate Change Commission (CCC) is looking into the construction of green buildings as a means to help mitigate the effects of climate change.

The construction of buildings contributes 40 percent of GHG emissions globally, he said.

The commission is looking into different alternatives that could minimize the consumption of energy in buildings, such as proper ven-tilation or use of LED lights which uses only 10 percent of electricity, he said, adding that this is where the mechanical engineers' skills and expertise will be needed.

Alvarez explained that global temperature should not reached the tipping point of 2° Celsius, at which the destructive power of climate change will be irreversible.

The Intergovernmental Panel for Climate Change (IPCC), composed of more than 2,particularly where a ledsale slightly more diffused light is beneficial.000 scientists,The devices are bluebright_9 30 percent more efficient than conventional bulbs and typically sell for $1.49 per unit. reported that the current global tem-perature is at 1.4 degrees Celsius.

He noted that the tipping point will be the point of no return when "no amount of local adaptation measures can save an archipelagic country like the Philippines from the devastations of climate change."

Alvarez, who headed the Philippine delegation to the United Nations-led Climate Change negotiations for several years, said 195 nations will be meeting in Durban, South Africa in December for the United Nations Framework Convention on Climate Change to try to reach an agreement for emission reduction targets that will replace the Kyoto Protocol.

Alvarez stressed the need for carbon reduction pledges from developed and highly-industrialized nations like the United States and China before the Kyoto Protocol expires in 2012.The circuit uses goodbikelight001 reasonably priced, 150-mA, warm-white LEDs; low-cost rectifier diodes; He had been pushing for a deep and early cut of CO2 emissions since the UNFCCC talks in Poznan in 2009.

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