Showing posts with label climate change. Show all posts
Showing posts with label climate change. Show all posts

Saturday, September 5, 2009

Green Gasoline from Trees

Energy crisis, its consequences and possible alternatives are widely discussed and debated issues in present time world. There is no second belief that stock of fossil fuel is limited and one day it will be finished. Use of fossil fuel is causing environmental problems. But there are many opinions on alternatives to the traditional fuels being used. One option scientists are working on is the use of bio-diesel. Fuel is produced using biological materials mainly plants and used in vehicles. Bio-diesels are being produced by corn, sugarcane and other plant materials. There are lots of controversies on the production and use of these plants for fuel. Researchers are still going on to make this cheap, readily available and utilization of 'new' plants like algae. I n the video presented below shows the production of green gasoline. They say green, because they are using trees to produce gasoline. Trees contain cellulose which is produced by plants from sunlight and carbon di-oxide. Cellulose from tree logs made into powder is treated with catalysts which convert cellulose into gasoline and this gasoline can be used into regular machines without any modifications of the machines. However, the video doesn't speak about the commercial, economic and other parts of the green gasoline.

Sunday, March 8, 2009

Global Warming and Atmospheric Brown Clouds

Global warming and climate change are global problems. Eventhough, the countries and people who have not contributed anything for these environmental problems they have to face the impact of these problems equally.

Professor V Ramanathan is one of the best scientist working on climate change and global warming. His latest research describes Asian Brown Clouds (ABCs) which is very important in terms of global warming. In this video he talks about global warming, climate change and specific to ABCs which is a threat to Asia.

This is a long video (54min) of his lecture at UC Davis. I definitely recommend you to watch full video which helps to better understand the latest problem we are facing.

Friday, September 19, 2008

Climate Change:Challange of 21st Century

One of the big challenges of present world is climate change due to global warming. It is believed that humans are enhancing global warming. The video below well explains this topic. It tells you about the atmosphere of our earth, weather system, role of CO2, and effects of global warming. We have already seen the effect of global warming. Mt. Everest, the tallest mountain, in the world is becoming naked. There is danger of bursting of snow lakes in the Himalayan region. This is really nice video (animated) targeted for general public. SAVE OUR EARTH.