In discussions regarding Africa during the 34th G8 Summit, the G8 leaders set a five-year deadline to commit US$60 billion in funding to help fight disease in Africa and renewed a commitment made three years earlier to double aid for Africa to $25-billion by 2010 and to consider pledging further assistance after 2010. On the topic of global warming, the G8 leaders agreed on the need for the world to cut carbon emissions blamed for global warming by at least 50 percent by 2050. Environmental activists and leaders from the developing countries described the statement as a "toothless gesture". Results of discussions on the Anti-Counterfeiting Trade Agreement, which had earlier been leaked by WikiLeaks, were not known. The G8 leaders made statements regarding their relations with Zimbabwe, Iran and North Korea. The responses of the G8 leaders to the "Challenge to the G8 Governments" of over 100 NGOs and other organisations and individuals requesting them to "cancel all illegitimate debt", to "end the practice of using loans and debt cancellation to impose conditionalities" and to "facilitate the return of stolen assets kept in the banks in the G8 countries" are not presently known. Regarding the 2007–2008 world food price crisis, the differences between the G8 leaders and the citizens' groups' approaches to solving the crisis appeared unresolved. The G8's communiqué said that it was "imperative" to remove export restrictions, in contrast to requests of the signers of the "Challenge to the G8 Governments".