Tokyo, March 16, SPA -- The world's 20 major greenhouse gas emitters endedtwo days of discussions in Japan Sunday without reaching consensus ona concrete plan to tackle climate change, reported dpa. Senior officials and experts from the Group of 20 nations (G-20),which are responsible for 80 per cent of the world's CO2 emissions,however, agreed with former British Prime Minister Tony Blair'sconviction. Former British Prime Minister Tony Blair on Saturday urged theG-20 members to take collective action to reduce carbon emissions by50 per cent by 2050 because the world has come to "the criticalmoment of decision." The former British leader joined the dialogue on a climate treatyto succeed the Kyoto Protocol, which expires in 2012. While industrialized nations supported Japan's proposal tointroduce a sector-based system, the developing nations expressedconcern that they would be subjected to unfair obligations toreduce carbon emissions. Some G-20 nations including the two largest carbon emitters - theUnited States and China - have no emission caps required by theKyoto Protocol. The meeting involved China, India, South Korea, Mexico, Australia,Indonesia, Spain, Poland, South Africa, Iran, Brazil, Nigeria and theG-8 industrialized nations. The fourth round of talks under the G-8 Gleneagles Dialogue onClimate Change, Clean Energy and Sustainable Development was held tofind ways to provide financial aid and environmental technologies todeveloping nations in the global fight against climate change. The dialogue is leading up to the G-8 summit that Japan is to hostat Lake Toya in the northern island of Hokkaido on July 7-9.--SPA www.spa.gov.sa/536964