“Rising temperature and carbon dioxide concentration increase pollen production and prolong the pollen season in a number of plants with highly allergenic pollen, presenting a health risk” (Anderson 96). Carbon dioxide is a type of gas that plants require to absorb as they go through their food-making process of photosynthesis. It is also a heat-trapping gas that can accumulate in the atmosphere and contribute to the greenhouse effect, which is the main cause of increasing temperature. The amount of carbon dioxide increases and prompts the growth of plants during the warming season of spring. Rising temperature and carbon dioxide increase promotes the growth of certain pollen-producing plants, like ragweed, that releases pollen into the air. This poses an unfavorable condition for allergy and asthma sufferers as pollen can disrupt the function of their respiratory system, triggering an attack. This also means that the rising temperature and carbon dioxide level becomes a health threat for individuals with sensitive respiratory systems. The quote supports my thesis because it directly states that certain consequences of global warming causes a health risk and provides a possible reason of why there is a health risk.
“Direct effects of the anticipated changes in global and regional temperature, precipitation, humidity and wind patterns resulting from anthropogenic [human-induced] climate change are factors that have an impact on the vectors’ reproduction, development rate and longevity” (Marten 27). The name vector is given to a living organism that carries a disease within itself and can potentially transmit the disease directly to another living organism, including humans, normally through bites. The most common types of vectors are insects, and a classic example is the mosquito, in which it can carry deadly diseases like malaria and Dengue fever. The increase in temperature allows the environment to become a suitable habitat for vectors because they use the heat to sense warm-blooded animals to prey on for blood. Precipitation, especially rain, benefits vectors like mosquitoes because excessive humidity and still water is required for breeding. As the warming temperature favors the growth of vector populations, the reproduction and development rate of these organisms eventually grows as well. Therefore, the quote expresses that climate change due to human activities (release of greenhouse gases) affects the overall living of vectors. The quote does not directly relate to my focus; however, due to the impact of the increasing temperature, the life cycles of disease-carrying organisms are altered. The altered life cycles then influence the organisms’ risk of transmitting infectious diseases to humans to change, and possibly increase due to the favoring factors of warm temperature and humidity.