Fifteen youths from the Group of Eight nations and five emerging economies have urged G8 environment ministers to introduce a "strict international carbon cap-and-trade system" to curb greenhouse gas emissions blamed for global warming.

In a proposal called "The Kobe Challenge," the youths asked the ministers to "integrate climate change into all education systems" while calling for increased aid to developing countries to fight global warming.

The youths, representing 39 International Climate Champions selected by the British Council and local partners, met the ministers Saturday evening on the sidelines of three days of G8 environment ministerial talks through Monday in Kobe.