CO2 releases into the atmosphere in a ton of ways. The largest source of natural carbon emissions is the exchange of carbon dioxide between the oceans and the atmosphere. Animals and plants also emit CO2 through the process of respiration (breathe in oxygen, breathe out CO2)....
The carbon footprint created by four years of deforestation is equal to the projected carbon footprint of every single air flight in the history of aviation up to the year 2025 [source: Kristof]. Let's break that down into simple logic: Trees absorb carbon dioxide. So, fewer trees means ...
Plants produce carbon dioxide through cellular respiration. The amount of CO2 they release, however, is much less than the amount of CO2 they consume through photosynthesis. Photosynthesis releases oxygen gas as a byproduct and the oxygen diffuses out through the stomata of the leaves. Plants also...
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However, human industrial activity, particularly the burning of fossil fuels necessary in transportation and manufacturing, releases vast amounts of carbon dioxide in a relatively short amount of time. As a result, it causes a surplus of CO2 and traps solar heat in the atmosphere, wreaking havoc...
3. How does the woman probably feel now? A. Regretful. B. Anxious. C. Confused. 4. Where does the conversation take place? A. In a restaurant. B. In a police station. C. In a car. 5. What is the man going to do tomorrow?
The Roots of Your Personal Carbon Footprint The primary contributors to climate change at a global level are fossil fuels. Burning coal, oil, and gas releases CO2 into the atmosphere. While fossil fuel companies and governments play a bigger role in contributing to and managing global emissions,...
This releases heat back into the air. But, some of that heat is trapped by the gases in the atmosphere. These heat-trapping gases are called greenhouse gases. Carbon dioxide, water vapor and methane are all examples of greenhouse gases. Earth needs a balance of greenhouse gases to maintain ...
Plants can clean the air. What's the main way they do this? A. By taking in carbon dioxide and giving out oxygen. B. By taking in oxygen and giving out carbon dioxide. C. By taking in water and giving out oxygen. D. By taking in carbon dioxide and giving out water. ...
The only downside is the cost of the additional carbon needed for the micro-organisms to metabolize and produce these biodegradable polyesters – although waste cooking oils and animal oils are promising, cost-effective, and sustainable options. Companies that have introduced PHA...