The application is created in March, 2010, written by Visual Basic 6.0. It's almost my first "product" in my life of programming.
The purpose of the application is appealing people to protect the environment by decreasing the carbon dioxide.
The application was awarded second prize in "Students Programming Contest of Hangzhou" in the year of 2010.
You can use the application to calculate the carbon dioxide in daily life, such as taking planes, driving cars and so on.
From then on, I did no modifications any more. But you can still get the application here.
BTW, the language of the application is Chinese(简体中文).