“The longer we delay decisions to stop climate change the higher the price humanity will pay,” he said after the talks where the MIT professors named climate change as the largest threat to mankind. Meeting the challenge cannot be delayed, because recurring water crises are jeopardising food supplies, he insisted and warned that the political and social consequences could be serious.
Water shortage in some countries of Africa and Asia could hinder the gross national income by as much as 10-15%, and coupled with a demographic boom it could lead to a food crisis, which would then involve political tension, conflicts and increased migration, he said.
Áder cited India and Pakistan for example, and said that their recent conflict was rooted in a shared river basin, which can no longer serve increased populations in both countries. He warned that a large part of the global population has to share such areas with other peoples which could lead to further conflicts.
Áder called for urgent research to find ways to store solar and wind energy and to reduce the water consumption of farming.