Here are three scenarios of future global warming. Each one shows the possible warming from a different level of greenhouse gas emissions. Here you can see what could happen by the year 2030 if we reduce greenhouse gas emissions drastically. Even if it could be done, some warming would still occur because of the gases we have already added to the atmosphere.
Blue areas show cooling and white areas show no change.
Here you can see what could happen by the year 2030 if greenhouse gas emissions continue to increase. The greatest temperature change takes place in the polar regions. Blue areas show cooling and white areas show no change. Here you can see what could happen by the year 2030 if we emit greenhouse gases at a constant rate. Warming is due to the gases we have already added to the atmosphere as well as the continued emissions.