He considered not just the quantities of greenhouse gases that would be emitted, but also the impact the fuels would have on the ecosystem - taking up land and polluting water, for instance.

But a new research said that the so-called atmospheric aerosols can poison the phytoplankton so as to damage the Marine ecosystem and change the content of the greenhouse gas in the atmosphere.

Greenhouse gas emissions, in which CO2 contributes most, have made great influences on the world ecosystem and social economic development.