Discuss three (3) positive and three (3) negative impacts of humans on the biosphere

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“Effects on the Environment”

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Note: Online students, please respond to one (1) of the following four (4) bulleted items.

• Discuss three (3) positive and three (3) negative impacts of humans on the biosphere. Which positive and negative impacts do you believe are the most significant to consider. Justify your response.
• Describe two (2) techniques required to study ecosystems then provide an example of each technique. Suggest two (2) advantages and (2) disadvantages for each of your chosen techniques.
• Listen to the Ted Talk titled “Jane Poynter: Life in Biosphere 2” found here. Suggest three (3) lessons we can learn from this experiment then describe what you believe life will be like living in an extreme environment (e.g., underwater, outer space). Justify your response.
• Read the BBC article entitled, “Global warming increases ‘food shocks’ threat” found here. Next in your own words define global warming and state three (3) effects of global warming that you believe will have the greatest impact. Lastly debate whether or not you believe that science could improve the nutrition of millions around the globe. Justify your response.