Summarizes the main points of lecture on 30 January.

The main purpose of this lecture is to think about reducing atmospheric emissions of Carbon dioxide (CO2) from human activities.The reason of this lecture is to evaluate the current state of basic fact regarding the technical, scientific, environmental and economic which are all effect potential climate changes.

Professor Palmer hightlighted on some of the key main factors between carbon dioxide emission and major climate changes. Electric power plants, automobile engines and furnances are major units of producing CO2 into the atmosphere. For example: the burning of fossil fuels such as coal and oil are large point sources of CO2. On the other hand, the burning of forests during land clearance will effect on the world climate changes.

In near future, scientists will be able to come out with new technology which can be able to capture and store excess carbon dioxide gas from the atmosphere. Carbon dioxide capture and storage involves the use of technology, first to collect and concentrate the CO2 produced in industrial building sectors. Then, transport CO2 to a suitable storage location such as deep blue ocean and outer space. This will help to lower down the emissions of greenhouse gases.

Other technological options were also discussed and pointed out step by step. They are: Option (1) reducing energy demand by using energy efficient electrical devices; Option (2) switching fuel supply from coal to gas or other alternative energy sources.

Second speaker, Dr. Sowacool, touched on government policies and its impact on global warming. One of the major porblems is politicians tend to work short term, at this moment there is no strong policies which can give sufficient protection for emission of greenhouse gases.

There are good and bad reasons for developing new technologies. In these days, companies increase the standard of their products by increasing energy efficiency. Renewable energy is one of the key factors in efficient energy consumption. On the other hands, more and more people are dashing for gas as for the source of new energy supply. Due to high cost of gas and other environmental issues, deindustrialization occurs in some countries.

At last, Associate professor Bala brought out some important fact and solutions for global warming. Firstly, human population have to be controlled. Foods, water and natural resources are limited. Meanwhile, building environmental friendly houses will benefit to the earth.

In the end, The two methods of carbon dioxide capture and storage are interesting. The global warming will stop, only if these new technologies can be implemented successfully.