The warning bell has been sounded – the tropics are advancing and, soon, the climate of Sydney would turn into that of Brisbane. Get ready to die and wait for your fossils to be unearthed million of years later by a new breed of humans or aliens. Who knows - once man becomes extinct, aliens might take over. Studies reveal that the tropics are advancing above and below the equator. This would dry out the existing fertile regions and have serious and adverse effects on food production and, consequently, health. The poorest and least educated people live near the tropical belt which is home to millions of species of plant and animal life. This area also generates a substantial portion of the total wealth of the world. All that would gradually vanish and we would all become extinct. Begin to say your prayers.