Blue Planet Prize Story

Professor Ramanathan discovered that chlorofluorocarbons (CFCs) also have a greenhouse effect, contrary to the common understanding that global warming is caused solely by carbon dioxide. Additionally, he discovered the effect of black carbon in the atmosphere in an international research project conducted in the Indian Ocean. While continuing broad research on the impact of SLCPs on global climate, he partnered with influential leaders around the world to provide the public with opportunities to think about air pollution and global warming; and engaged in more practical activities in reducing the emissions of black carbon in farming villages in India.
SLCPs cause air pollution and global warming. Reducing SLCPs leads to the early decrease of the problems. These are issues related to everyone on earth, wherever they live. Young people also need to think about what they can do to reduce the emissions of SLCPs in their daily life.

Try to reduce SLCPs!

1. Students are asked to search and list the sources of SLCPs. If it is difficult for students to search by themselves, so instructors may provide them with a list of sources.

Sources of emission: Automobiles, power plants, coal stoves, factories, waste disposal facilities, livestock, cooking stoves, food waste, inappropriate disposal of refrigerators and air conditioners, forest fires

• *Black carbon is produced by burning substances containing carbon.
• *Methane is emitted when cows and other ruminants belch. It is also generated from food waste.
• *Hydrofluorocarbons (HFCs) are used as a refrigerant in refrigerators and air conditioners. If they are not appropriately processed during disposal, HFCs are emitted into the air.
• *Ozone is not directly emitted; however, it is generated when precursors, such as nitrogen oxides in the air, react with other chemicals. In order to prevent ozone from being produced in the air, we need to reduce the air pollutants, including nitrogen oxides, sulfur oxides, and black carbon.

2. Students are asked to choose one source of emissions, and then consider how they can reduce that emission in their daily life.

Example 1:

Power plants Energy saving Increase or decrease the temperature set on air conditioners

Example 2:

Livestock farming Reduce the amount of meat they eat

Example 3:

Example 3: Food waste Try not to leave meals unfinished Try not to purchase or order excessive amounts of food

Example 4:

Example 4: Automobiles Switch to an electric vehicle

3. Students present their ideas in the classroom and exchange opinions.