Global Problems Climate Change The global temperatures are rising, and are estimated to increase from 2.6 degrees Celsius to 4.8 degrees Celsius by 2100. This would cause more severe weather, crises with food and resources and the spread of diseases. The reduction of greenhouse emissions and the spreading of education on the importance of going green can help make a big difference. Lobbying governments and discussing policies to reduce carbon emissions and encouraging reforestation is an effective way of making progress with climate change.