What is the main idea of the news item? [br] [originaltext] (4)A UN agency

(4)A UN agency says there are major funding gaps in efforts to help the agricultural sector adapt to climate change. The Food and Agriculture Organization, the FAO, says this could affect food security. The warning comes as the UN Climate Change Conference continues in Cancun, Mexico.
     (5)The World Bank estimates it will cost about $2. 5 billion a year—for the next 40 years—to help agriculture in developing countries adapt to climate change. Other estimates say costs could run as high at $14 billion a year.