Writers who have presented ideas that have paralleled various of those of Malthus include: Paul R. Ehrlich who has written several books predicting famine as a result of population increase: "The Population Bomb" (1968); "Population, resources, environment: issues in human ecology" (1970, with Anne Ehrlich); "The end of affluence" (1974, with Anne Ehrlich); "The population explosion" (1990, with Anne Ehrlich). In the late 1960s Ehrlich predicted that hundreds of millions would die from a coming overpopulation-crisis in the 1970s. Other examples of work that has been accused of "Malthusianism" include the 1972 book "The Limits to Growth" (published by the Club of Rome) and the Global 2000 report to the then President of the United States Jimmy Carter. Isaac Asimov also produced many essays on topics related to overpopulation.