The issue focused on climate change and agriculture in Asia. Scientists believe there will be enough rain by 2050 to supply China with food for its estimated population of 1.4 billion people. But scientists fear that rising temperatures could dry up agricultural lands, forcing farmers to migrate or selling land at fire-sale prices to cattle ranchers and miners.

China has rejected calls from environmental groups and scientists for stronger regulations on agriculture and greenhouse gases. Beijing argues it must promote innovation and technological advances in agriculture in order to boost productivity