According to a report published in the journal Proceedings of the National Academy of Sciences, climate change will negatively affect crops such as wheat, rice and maize—crops that are significant to the survival of humanity and that make up a large percentage of humans' caloric intake.

Reviewing previous research in their analysis—including simulated crop reaction to temperature changes and artificial field warming experiments—researchers determined that for each degree of Celsius warming (nearly two degrees Fahrenheit) wheat yields could see a six percent global reduction while rice would experience a reduction of 3.2 percent and maize would be reduced by a 7.4 percent.

Conversely, changing temperatures are also expected to cause higher yields in some locations, according to the report.