Increasing heat pressure on crops is expected to reduce grain production by about 10 percent, but new research suggests that an increase in pests could lead to another loss. According to the article increase in crop losses to insect pests in a warming climate published on Science, if the temperature on earth continues to rise, the pests will eat more crops and enhance their productivity, leading to a severe food loss which is unaffordable for human beings considering the already existed food shortage on earth and the  continuing population growth.The researchers predicted that if the temperature rise 2 degrees Celsius, bugs will destroy nearly 50% wheat more than they do now and 30% of wheat and corn respectively. The third major food supply, rice, grown in the tropics is comparatively less affected, because the tropical regions are already closer to the optimal temperature of insects. However, even under this circumstance, the insects will still eat 20% more. The wheat industry in the UK, the maize production in Canada, as well as China and the U.S. as the two largest agriculture exporters would be most significantly affected. However, these numbers may still have been underestimated as scientists did not take those factors such as the increase in crop diseases spread by insects, or the loss of grain after harvest during the phase of storage and the risk of an insect surge. Prof Curtis Deutsch, leader of this work, comments that “The predicted dramatic increase in pest populations calls for actions on tackling climate change. Everyone has to be involved in change: farmers, industry, policymakers and the wider society”