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Consider the following information: Every time we use fossil fuels, we release carbon dioxide into the atmosphere. Fuel must be burned to extract oil from the ground and process it; and then more fuel must be burned just to transport the fuel to where we buy it! Scientists believe that it is carbon dioxide emissions that are responsible for climate change, specifically the global warming effect.

The rapidly increasing amount of carbon dioxide may be one of the factors that cause climate change. As Hillman states, “Concentrations of carbon dioxide in the atmosphere are increasing, and have done so since the Industrial Revolution.” An atmospheric CO2 concentration, research shows that there is a dramatic increase from 280 parts per million (ppm) in 1750 to 373 ppm in 2002, a rise of the third. Furthermore, the linear chart demonstrated the trend of annual global CO2

When trees are burned, CO2 is relinquished. The burning of astronomically immense areas of trees is known as deforestation. Human activities integrate more CO2 into the atmosphere through activities like the burning of fossil fuels. The guiding question of this investigation is, “Which carbon cycle process affects atmospheric carbon the most?” The researchers initially wanted to learn 2 things. First, the researchers wanted to learn how much carbon engenderment there would be if they incremented the amount of fossil fuels burnt by a certain amount. The researchers also wanted to learn how much carbon engenderment there would be if they incremented the amount of deforestation.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Identify the letter of the choice that best completes the statement or answers the question.

What is the main source of the increased levels of carbon dioxide in the atmosphere?

2) Which of the following statements best describes the effect of climate on biome distribution?

Over the years Carbon Dioxide has been significantly increasing from human activity. CO2 has a concentration of about 400 ppmv (parts per million volume). Its concentration in the atmosphere was about 280 ppmv before the Industrial Revolution, now it has increased immensely to about 380 ppmv in 2006. Many have said Carbon Dioxide has been the main reason or cause of global warming; saying that if we produce too much of this greenhouse gas it can create a global climate change. Even though carbon dioxide affects the temperature of the atmosphere it also affects the acidity of water specifically in the ocean.

Samenow (2015) argues that climate change is best regarded as as a drought amplifier rather than the source of the drought itself. He provides instances showing links between drought and climate change. One is that the atmospheric levels of carbon dioxide, a heat-trapping gas, have risen about 25 percent since 1958. Heat-trapping gases, like carbon dioxide, act like a performance-enhancer when it comes to warm weather extreme, because they considerably intensify the probability for setting new records for hot

Main Point - Despite the fact that a specific amount of carbon dioxide (CO2) happens naturally in the Earth's atmosphere, there are many human activities that boost the levels of the greenhouse gases causing it to be harmful to Earth`s climate.

Secondly, together with deforestation of the planet, the burning of fossil fuels is contributing to a measurable increase in the concentration of carbon dioxide in

23. Why does reduction in soil moisture content pose an impending disaster for many areas in the world?

• Carbon dioxide (CO2) is a greenhouse gas that warms the atmosphere. • Since pre-industrial times, atmospheric CO2 concentrations have increased from about 280 parts per million (ppm) to over 380 ppm. Current concentrations of CO2 and other greenhouse gases are unprecedented in at least the last 650,000 years, based on records from gas bubbles trapped in polar ice. • Independent measurements demonstrate that the increased CO2 in the atmosphere comes

Carbon dioxide is the greenhouse gas naturally found in the atmosphere. Since the advent of the Industrial Revolution in the 1700s, humans have devised many inventions that burn fossil fuels such as coal, oil, and natural gases, which, along with other human activities such as clearing land for agriculture or urban settlements, help some of these greenhouse gases accumulate in the atmosphere that in turn trap more heat radiation in the atmosphere causing the Earth’s climate to become warmer than it would naturally (Mastrandrea). This unnatural phenomenon is termed global warming by scientists and they blame it for an increase in the Earth’s surface temperature of about 0.6°C (about 1°F) over the last 100 years (Mastrandrea).

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.