Deforestation is when people cut down whole forests of trees, making it less likely for humans to survive. Deforestation is the permanent destruction of indigenous forests and woodlands. It has resulted in the reduction of indigenous forests to four-fifths of their pre-agricultural area. Trees and plants supply oxygen, absorb carbon dioxide, and hold down the soil from washing away and making dangerous landslides. The destruction and cutting down of forests is often done to clear land for farming, mining, roads, and grazing of cattle. That causes increased atmospheric CO2 levels, a factor in global warming. Currently, 12 million hectares of forests are cleared annually. Almost all of this deforestation occurs in the moist forests and open woodlands of the tropics. The difference between forests and woodlands is that in a forest the crowns of individual trees touch to form a single canopy. In woodland, trees grow far apart, so that the canopy is open. All moist tropical forest could be lost by the year 2050, except for isolated areas in Amazonia, the Zaire basin, as well as a few protected areas within reserves and parks. Deforestation happens by conversion of forests and woodlands to agricultural land to feed growing numbers of people and the development of cash crops and cattle ranching, both of which earn money for tropical countries. Also, the commercial logging destroys trees as well as opening up forests for agriculture. The poor soils of the humid tropics do not support agriculture for long, Even though people are often forced to move on and clear more forests in order…
presence in the atmosphere of gases such as carbon dioxide, water vapor, and methane that allow incoming sunlight to pass through but absorb heat radiated back from the earth's surface.
2. A similar retention of solar radiation, as by another planet or in a solar panel.
heating of the atmosphere resulting from the absorption by certain gases of solar energy that has been captured and reradiated by the earth's surface.
Carbon dioxide is the greenhouse gas of most immediate concern…
back into space; some atmospheric gases (carbon dioxide, and other gases) Hold some of the escaping energy and retaining heat like the glass barrier of a greenhouse; these gases are therefore known as greenhouse gases; the greenhouse effect is the increase in temperature on earth as certain gases in the atmosphere hold energy. The greenhouse effect is a part of the natural processes; however, burning fossil fuel and deforestation also produce carbon dioxide into the atmosphere and therefore increases…
global warming? What are some of the disadvantages or advantages to global warming? (Shariff & Karachi, 2013)
Global Warming is the increase in the temperature due to the effect of the greenhouse gases, such as fossil fuel, deforestation and carbon dioxide, which traps heat that would otherwise escape from the Earth (NRDC, 2005). Global Warming can bring severe change to the atmosphere that could result into loss of human, animal life and natural resources significantly. In 2007, the United Nations…
Produces carbon dioxide and salt precipitates when reacting that could
harm the environment
Why rain is naturally acidic:
Unpolluted rainwater has a pH of around 5.6
Gases in the atmosphere where rain forms react with water to form acids
H2O + CO2 - H2CO3 (carbon dioxide reacts with water to form carbonic
NO - NO2 + H2O - HNO3 (nitric oxide is oxidised in air to form nitrogen
dioxide then reacts with water to form nitric acid)
SO2 + H2O - H2SO4 (sulfur dioxide reacts with water to…
Rubisco (the enzyme used in the Calvin Cycle to attach the carbon in CO2 to a 5C [carboxylase] molecule to make sugar) makes a “mistake”: it binds O2 with the 5C instead of carbon dioxide [oxygenase]
In what process is rubisco important? Rubisco is used in the Calvin cycle to bind carbon in CO2 to a 5C molecule to make sugar
What’s the “problem”? Rubisco is not a “perfect” enzyme
It can add carbon [good] or oxygen gas [bad] during the Calvin Cycle
If rubisco binds an O2 molecule…
Summary of “Study of Ice Age Bolsters Carbon and Warming Link”
A study done in Antarctica suggests that the high levels of carbon dioxide in the atmosphere, contributed to the last Ice Age. About 20, 000 years ago the world started “recuperating” from the Ice Age, ultimately changed the global levels of carbon dioxide.
The author of this article, Justin Gillis, states “to assert that rising carbon dioxide levels were essentially irrelevant to the earth’s temperature — a side effect…
scientists. Global warming is affecting the nature’s balance and has a huge impact on everyday life, with heat waves, and sudden occurrence of storms and floods.
There are many causes of Global Warming. The destruction and burning down of tropical forests, traffic clogging up the city streets, rapid growth of unplanned industries, the use of CFCs in packaging and manufacturing products, the use of detergents ect. All of these factors play their parts in Global Warming. Next to overpopulation, Deforestation…
be oxygen, nutrient, hormones, heat, enzymes and salt and waste substances that the blood carries around the body are carbohydrate, aria, uric acid and salt. The purpose of the blood and circulation are that it circulates oxygen and takes out carbon dioxide, helps regulate condoms to mark cells and organs, provides cells with nutrients and prevent the body against disease and infection.
Cardiovascular is made of blood vessels, veins and capillary. The heart is divided into three chambers: the upper…
World in Danger
Humans have been inventing tings throughout history. Recently these inventions needed the burning of fossil fuels to power them. Burning the fuel releases carbon dioxide into the air, warming the Earth’s surface. The global warming is weakening plants and animals all over the Earth. World leaders should sign a binding agreement to lessen the effects of global warming because it may save the world from devastation.
Signing a binding agreement may help the environment, but countries…
build stores of energy. This event occurs in chlorophyll containing plant cells. Chlorophyll is a pigment found in plant leaves that gives plants their green color. Chlorophyll absorbs the light energy and utilizes it to produce carbohydrates from carbon dioxide and water. This chemical reaction produces oxygen which is released into the atmosphere. The carbohydrates produced by photosynthesis are used by the plants as a source of instant energy for growth, reproduction, absorption of nutrients, etc.…