Lawsuits may become the next weapon against climate change as impotent, tiny islands, sinking beneath the waves, seek revenge on the rich polluting nations and multinational concerns they accuse of wiping them out...Australia and the United States could possibly be challenged in the International Court of Justice for not ratifying Kyoto...An alternative avenue might be the U.S. alien tort claims act, which could allow Pacific islands to sue car makers, power station operators or oil firms for pollution.