I studied in my course about the optimum utilization of resources but the result of over utilization could be dangerous at huge level. If we divide the Gross World Product ($65 Trillion) on per person it will be $9000 annually. But, i am very much surprised and shocked to know the expenses on an European Cow is higher than an African. This is shameful movement for entire Homo sapiens. Fair trading could be helpful to raise the standard of the people who are leaving behind poverty line i.e. 1.4 billion people across globe. Giving equality in the area of economics standard,race,religion,society and rights could reduce the pressure on Earth.The over utilization of Earth i.e.150% seems to be bad & tough, future for every living beings and itself Earth too. So, leaving behind the selfishness, money, high desire we must take care for the equality of humanity, maintain the balance of Earth which will lead a comfortable life even in future. Thinking about ourselves only is a temporary solutions and entertainment but looking for other could be a permanent. Concluding my thoughts after going through 'The Arithmetic of Compassion' i believe caring Earth and other people will be fruitful and desirable for the upcoming generation and time. So, DEAL FAIRLY !