
Sunday, July 20, 2008
Meanings of My Logo

Saturday, July 19, 2008
PRODUCTION OF MY LOGO
Deforestation

Saturday, July 5, 2008
The loss of the ozone layer

Friday, July 4, 2008
Background Research

Sunday, July 20, 2008
Meanings of My Logo
The main theme of my logo is " Deforestation " .
House : I use the shape of a house in my logo to deliver the message of planting more trees to every family around the whole world and to the members of those family. At the same time, house is also signifies home or protection, it also indicates the message of protect and love our nature.
Green : Green is the color for trees and at the same time also been signified as the color of nature.
Latte : Latte is a color that represents soil color of the earth. I put the tree on this part to represents a tree being planted on the ground and we should protect them well now and forever.
Orange : Orange or red is give the meaning of heat or hot. I fill the part of the earth this color to enhance the messages of global warming and that the general temperature of the whole world have increased. I used buildings like features to represents the earth or can also symbolises concrete high buildings of the city. We all know that when more and more skyscrapers are built, it indicates that more and more trees were chopped down in order to clear the land which is one of the causes of global warming.
Blue : Blue represents water. I used it in my logo to represents the part of sea that cover the earth. The blue part of my logo represents the sea. As we can see, I applied wavy lines to enhance the features of sea. As we all knows, when global warming occurs, many of the giant icebergs in the Artic and Antartic have melt away due to the rise in global temperature and this has lead to the rising of sea level all around the world.
Saturday, July 19, 2008
PRODUCTION OF MY LOGO







Deforestation

The statistics paint a grim picture. According to the World Resources Institute, more than 80 percent of the Earth’s natural forests already have been destroyed. Up to 90 percent of West Africa’s coastal rain forests have disappeared since 1900. Brazil and Indonesia, which contain the world’s two largest surviving regions of rain forest, are being stripped at an alarming rate by logging, fires, and land-clearing for agriculture and cattle-grazing.
Among the obvious consequences of deforestation is the loss of living space. Seventy percent of the Earth’s land animals and plants reside in forests. But the harm doesn’t stop there. Rain forests help generate rainfall in drought-prone countries elsewhere. Studies have shown that destruction of rain forests in such West African countries as Nigeria, Ghana, and Côte d’Ivoire may have caused two decades of droughts in the interior of Africa, with attendant hardship and famine.
Deforestation may have catastrophic global effects as well. Trees are natural consumers of carbon dioxide—one of the greenhouse gases whose buildup in the atmosphere contributes to global warming. Destruction of trees not only removes these “carbon sinks,” but tree burning and decomposition pump into the atmosphere even more carbon dioxide, along with methane, another major greenhouse gas.
UN warn for negative effects of biofuels
Biofuels like ethanol can help reduce global warming and create jobs for the rural poor, but the benefits may be offset by serious environmental problems and increased food prices for the hungry, the United Nations concluded Tuesday in its first major report on bioenergy. Biofuels, which are made from corn, palm oil, sugar cane and other agricultural products, have been seen by many as a cleaner and cheaper way to meet the world‘s soaring energy needs than with greenhouse-gas emitting fossil fuels. But environmentalists have warned that the biofuel craze can do as much or more damage to the environment as dirty fossil fuels - a concern reflected throughout the report, which was being released Tuesday in New York, by U.N.-Energy, a consortium of 20 U.N. agencies and programs. Changes in the carbon content of soils and carbon stocks in forests and peat lands might offset some or all of the benefits of the greenhouse gas reductions, it said. It noted that soaring palm oil demand has already led to the clearing of tropical forests in southeast Asia.

But with the surge in interest by the private sector, the rise in commodity prices and an awareness of the strain on water supplies that has resulted from biofuel production, "we now have to raise the red flags and say ‘be careful, don‘t go too fast,‘" he said in an interview. That the report exists is something of a miracle, since there has long been opposition among U.N. member states - including OPEC , nuclear and other energy lobbies_ to have any kind of international dialogue on energy. There is for example, no U.N. Millennium Goal for energy, and recent U.N. working documents on sustainable development continue to be very fossil-fuel oriented, Best said. The document is intended for governments to help them craft bioenergy policies that maximize the potential but minimize the negative impacts - even as the technology continues to change. "We can‘t cross our arms and wait to have better data or better methodologies," Best said. "We need to contribute to the discussion, but in a balanced way."
Saturday, July 5, 2008
The loss of the ozone layer

What we do know is the Universe, including the Sun, releases stored energy in a range of alternating electric and magnetic fields. Scientists have named the shortest detectable wavelengths Gamma rays and X-rays. Ultraviolet waves are next on the spectrum:
UVC in the 10 to 290 nanometer band,
UVB, 290 to 320 nanometers,
UVA, 320 to 400 nanometers.
Gasses and particulates destroy ozone
Volcanic emissions are a natural way to destroy ozone. If a volcanic eruption is strong enough it will send particulates and gases into the upper troposphere and stratosphere. Scientists estimate that the Mount Pinatubo eruption in June 1991 had eruption columns at an altitude of 35 kilometers, higher than the average concentration layer of ozone. Adding to this natural effect, two months later the volcanic Mount Hudson in southeast Chile erupted.Volcanic eruptions are a natural phenomenon, a temporary loss of ozone that the Earth life syste

Carbonyl sulphide is a photochemical reaction of sulphur. It contains organic compounds and was a major factor in causing the stratospheric ozone depletion of 1991/1992. The ozone hole over Antarctica was the largest recorded following the two eruptions.
Recording of ozone has been taking place over the Antarctic for the past fifty years.
Volcanic emission particulates and chemicals are not the only factors involved in ozone depletion.
Chlorine and Bromine are known to be two major causes of recent ozone breakdown.
For instance, when a chlorine radical connects with ozone, it produces oxygen and chlorine oxide, ClO.
This begins a chain reaction where the chlorine oxide quickly releases the chlorine radical — which then attaches itself to another ozone molecule, producing a new oxygen molecule and chlorine oxide molecule, which quickly releases, and so on.
CFCs, halon, hydrochlorofluorocarbons, methyl bromide, methyl chloroform and carbon tetrachloride, all are recognized as manufactured compounds that when released into the atmosphere significantly destroy ozone.

With an increase in biomass burning, industrial, and waste management activities, and the use of fertilizer — tests have shown soil-borne microorganisms produce nitrogen oxides as a decay product — more nitrogen oxides are being released into the atmosphere.
While much of the nitric oxide and nitrogen dioxide returns to the ground, nitrous oxide, commonly known as laughing gas, remains. N2O acts as a greenhouse gas. It also rises into the stratosphere where it is decomposed by UV radiation. Some N2O is converted to NO. Nitrogen oxide reacts catalytically with ozone to produce nitrogen dioxide and oxygen.
Aircraft as they fly around the world emit nitrogen oxides in their exhaust. A chemical process takes place in the wake of the exhaust transforming fumes into particulates. With an increasing number of planes flying near the tropopause, both nitrous oxide, and particulates, become readily available for transfer to the stratosphere. Aircraft exhaust is a factor in Ozone depletion.
Friday, July 4, 2008
Background Research

The 11,000 Tuvaluans live on nine coral atolls totaling 10 square miles scattered over 500,000
ocean temperatures, and rising sea level -- all documented results of a warming atmosphere -- are making trouble for Tuvalu.
Tuvaluans face the possibility of being among the first climate refugees, althoug

Sea level rise is the greatest problem. Tuvalu's highest elevation is 4.6 meters -- 15 feet -- but most of it is no more than a meter above the sea. Several times each year the regular lunar cycle of tides, riding on the ever higher mean sea level, brings the Pacific sloshing over onto roads and into neighborhoods. In the center of the larger islands the sea floods out of old barrow pits and even squirts up out of the coral bedrock. Puddles bubble up that eventually cover part of the airport on the main island of Funafuti and inundate homes that are not along the ocean.

This February, the tides were driven against the shore by unusual westerly winds, and there was increasing erosion. The main asphalt road is only about 10 km long, yet it runs right along the lagoon in many places and was covered in water and coral rocks thrown up by the tide. Hundreds of wood frame and corrugated metal roofed homes and several churches, built right on the lagoon, were drenched by the wind waves riding on the higher tides.
The islands are not going to go under immediately. Yet the effects accumulate, year by year. "Even if we are not completely flooded, " said Laupepa, "in 50 to 70 years we face increasingly strong storms and cyclones, changing weather patterns, damage to our coral reefs from higher ocean temperatures, and flooding of all our gardens." Not growing enough food and decreasing fish catch if reefs are damaged would mean "importing more food, more foreign exchange, and more health and diet problems, " he said.
source: http://www.worldviewofglobalwarming.org/pages/rising-seas.html