Archive for May, 2009

Paul Eckert About Climate Change

Paul Eckert on May 20th 2009

Nitric Acid – Intensifying Climate Change and Furthering Its Impact to the Environment

Paul Eckert About Climate Change By Jo Alelsto.

Nitric acid is one of the top chemicals in production around the world. Its primary application is in the manufacture of nitrogen-based fertilizers. It is also used in explosives, metallurgy, dyes, plastics, and pharmaceuticals. Other minor applications include water treatment, fibers and polymers manufacture, liquid-propellant for rockets, printmaking, and nuclear fuel reprocessing.

Human-influenced sources may account for as much as 40% of the total NOx released into the atmosphere. The laughing gas, nitrous oxide (N2O), is approximately accountable to 7% of the greenhouse gases. The concentration of nitrous oxide in the atmosphere has significantly increased from the pre-industrial period as compared in the last two decades.

As a waste by-product of nitric acid production, oxides of nitrogen (NOx) are very harmful to the environment and they can also aggravate the effects of climate change. Emissions from nitric acid manufacturing plants may not be as significant as those of combustion of fossil fuels but a small difference in the levels of nitrogen oxides released into the atmosphere will mean a big difference since they are very harmful greenhouse gases.

Biofuels are also contributors to nitrous oxide. Contrary to popular belief, a report from the International Council for Science (ICSU) concludes that biofuel production can aggravate global warming rather than alleviating its effects. The theory is that annual plants and crops such as corn, wheat and sugar cane take up carbon dioxide during their growth. Hence, fuels burned from them have no significant carbon dioxide emissions to the atmosphere.

The same study also supported an earlier finding which determined that nitrous oxide has a more harmful effect on the environment and the climate change phenomenon than previously believed. The ability of nitrous oxide in warming up the planet is 300 times more than carbon dioxide. It also stays longer in the atmosphere.

Nitrous oxide is a natural occurring gas in the atmosphere as a result of the nitrogen cycle but it is the rate at which its concentration increases and the factors which contribute to this increase that worries scientists and environmentalists. One of the greatest factors which most of them have seen is the anthropogenic sources such as nitric acid manufacturing plants.

Greenhouse effects cannot be ignored anymore. Climate change is upon us. The weather has become even more unpredictable than before. Studies have also identified that the main cause of this phenomenon are unchecked and negligent human practices.

As a result of industrialization, comforts have been afforded to us, such as electricity, transport, and other luxuries we now enjoy. But this comes with a price, the warming up of the planet.

Is this really worth it? Can we really afford the unpredictability of the weather today, the increase in intensity of natural disasters? The world has certainly begun to experience the effects of the accumulation of greenhouse gases in the atmosphere by the higher than normal temperatures, the melting of the polar ice caps and the rising sea levels.

We have to make a move now. A move to reduce our impacts on the environment, this especially goes to those who are in the position to make a significant change in reducing nitric acid production by-products. Owners and managers of plants and companies which use nitric acid must have proper processing and disposal strategies which are environment friendly.

But the responsibility doesn’t stop there. We must do our part as well. We are also stakeholders therefore we have to take responsibility. One thing is for sure though, we have to start today. This is because of the fact that the planet will continue to warm up for no less than 150 years due residence time of carbon dioxide, nitrous oxide and other greenhouse gases in the atmosphere. It will take a long, long time before the climate becomes stable.

Filed in Paul Eckert Climate Change | Comments Off

Paul Eckert About Greenhouse

Paul Eckert on May 8th 2009

How Much Green House?

Paul Eckert About Greenhouse By: Ken Charnly.

Lately, we have all been talking about the greenhouse effect. This effect relates to the expected warming of our planet resulting from changes to the composition of our atmosphere. There is mounting evidence that our own activities, most significantly the burning of fossil fuels, are a major contributor to this effect.

The predicted consequences are quite sever, including major changes in climate which will have impact on food production, and rising sea levels which will submerge coastal and other low lying communities. Lurking in the background hauntingly are the facts we have discovered about our near neighbor, the planet Venus. Because of its dense atmospheric gases, Venus has what has been described as having a runaway greenhouse effect, giving surface temperatures of about 8000F. Now I love the warm summer weather, but that is a little too hot for me.

The usual villains in the greenhouse scenario are gases such as carbon dioxide. Carbon dioxide, which, incidentally, we all exhale, has the unusual habit of absorbing infra-red radiation. Infra-red radiation for those of you less scientifically minded is actually heat radiating away from a warm object. During the day, sunlight warms the earth and during the night the Earth cools by radiating heat into space in the form of infra-red radiation. Carbon dioxide, and to a lesser extent other gases, absorb this radiation, limiting its exit out into space, and thus limiting the natural cooling effect.

Would it be safer if we had no greenhouse effect at all? Well, no, we do not want that either. There is another member of the heat absorbing clan. This is water vapor. There is a large amount of water vapor in the atmosphere at any time, which is why we have rain. The presence of water vapor as a heart absorbing gas keeps the Earth comfortably warm. Without this warmth, the planet would freeze, and life as we know it would not be possible. We therefore do need some greenhouse effect, just not too much. Mother Nature is again telling us what we should already know; in any situation, both of the extremes are harmful.

Filed in Paul Eckert Greenhouse Gases | Comments Off