The American Association for the Advancement of Science: Birth-rate cut urged to avert crisis: Ecologists say over-population will lead to series of disasters without urgent action
Your support helps us to tell the story
From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.
At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.
The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.
Your support makes all the difference.OVER-POPULATION threatens to become a global crisis unless drastic action to dramatically cut birth rates begins now, the American Association for the Advancement of Science was told yesterday.
World population is already nearly 4 billion more than the 2 billion the planet can comfortably sustain, according to an ecological study of natural resources to be published later this year.
Fertile soil for growing crops, unpolluted water, fossil fuels and the flora and fauna on which humanity depends are all being depleted at a rate that will lead to catastrophic natural, social and political disasters by the end of the next century, a leading ecologist told the meeting.
David Pimentel, professor of ecology at Cornell University at Ithaca, New York, released the results of a year-long study into the optimum human population - the number of people the planet can comfortably support with a reasonable standard of living for all.
The study concludes the present population of 5.6 billion will have to shrink to 2 billion. However, the projected population for 2100 is expected to be between 12 and 15 billion.
Professor Pimentel acknowledged that drastic adjustments to cut the population to 2 billion will cause serious difficulties. 'But continued rapid population growth will result in even more severe, social, economic and political conflicts - plus catastrophic public health and environmental problems.'
Among the main findings of the Cornell study are:
Soil erosion is more intense than ever. It takes about 500 years for an inch of topsoil to form, yet intensive farming is leading to topsoil being lost between 20 and 40 times faster than it is being replaced.
Global food production, which has increased over the past few decades, is to fall by about 20 per cent over the next 25 years.
Fresh water supplies will come under increasing strain, with demand expected to double because of a 20 per cent increase in human numbers.
Fossil fuels will be all but depleted within the next century. If all the people in the world consumed energy at the rate of a typical US citizen, the world's fossil fuel reserves would last a mere 20 years.
The world is losing 150 species of animals and plants a day because of human activities. This threatens the 500,000 species of animals, plants and microbes that carry out essential functions for humans, such as crop pollination and purifying water and soil.
The ecologists say: 'To do nothing to control population numbers is to condemn future humans to a lifetime of absolute poverty, suffering, starvation, disease and associated violent conflicts.'
Join our commenting forum
Join thought-provoking conversations, follow other Independent readers and see their replies
Comments