Complete the paragraph with the most valid and relevant types of supporting evidence. Climate change is harming not only the environment but also human health. It has led to
increased carbon dioxide levels in the atmosphere, producing a greenhouse effect.
According to
this greenhouse
effect could have a violent effect on Earth's climate. A study conducted by the
in 1970 indicated that climate change
might cause "widespread droughts, changes of the ocean level, and so forth."
also conducted a study in 2004 that revealed
that climate change was responsible for the rise in tropical illnesses such as dengue
fever and malaria.