SAPPORO, Japan, July 8 (Xinhua) -- Leaders of China, Brazil, India, Mexico and South Africa on Tuesday called for a shared responsibility to address the world's food security and an overall cooperation by the international community to boost energy development and utilization.

　　Chinese President Hu Jintao (2nd R) pose for photos with Indian Prime Minister Manmohan Singh (1st R), Mexican President Felipe Calderon (C), Brazilian President Luis Inacio Lula da Silva (2nd L) and South African President Thabo Mvuyelwa Mbeki before their meeting in Sapporo, northern Japan, July 8, 2008. (Xinhua Photo)

　　"We call upon the international community to devise better ways and means of producing and distributing food," said a joint declaration signed by Chinese President Hu Jintao and the leaders from Brazil, India, Mexico and South Africa after a group meeting on the sidelines of the Group of Eight Summit.

　　"Multi-billion agricultural trade-distorting support in developed countries have hampered the development of food production capacity in developing countries, critically reducing their possibilities of reaction to the present crisis," said the leaders.

　　They stressed the "imperative of creating an enabling international environment for agro-produce related trade, establishing a just and reasonable international trade regime for agricultural products and concluding the Doha Round with meaningful commitments to agricultural subsidies reductions."

　　They also urged developed countries to "increase their emergency aid at an early date," noting the food security crisis demands "a rapid and substantial increase in the allocation of resources to support rural development and combat hunger and poverty."

　　These leaders said they "encourage collaborative action for better seeds and farm outputs that are sustainable and environmentally sound as well as a comprehensive approach in all fields including finance, trade, aid, environment, intellectual property rights and technology transfer, so as to create a conductive international environment for food security."

　　On biofuels, they said "it is essential to address the challenges and opportunities posed by biofuels" and the current food security crisis has "multiple and complex causes whose assessment requires objectiveness."

　　Biofuels, if developed sustainably, "can effectively contribute to generating opportunities and achieving food and energy security altogether," they said.

　　"To this purpose, it is important that public policies for production of biofuels contribute to sustainable development and the well-being of the most vulnerable people and do not threaten food security," they concluded.

　　On energy security, which "is essential to ensure the steady growth of the global economy," the five developing countries' leaders said the world should emphasize renewable energy and energy efficiency and give "adequate consideration to solar, wind and hydro-electrical power, and biofuels such as ethanol and bio-diesel without adversely affecting food security."

　　"More efforts should be made to develop clean energy technologies that are affordable, environment-friendly and suitable to the conditions of developing countries, ensuring that these technologies be adequately transferred to developing countries," they said.

　　They also called for "an integrated approach to international energy cooperation and international development cooperation, ensuring access to energy by developing countries on an equitable and sustainable manner."