Our numbers have a huge effect on our natural environment. The more of us there are, the bigger the impact on nature. Human population growth is a key driver of biodiversity loss, resource depletion, deforestation, climate emissions and pollution.

In the 1970s, Population Matters Patron Paul Ehrlich and his colleague John Holdren developed an equation to describe our impact on the environment:

I = P x A x T

Where "I" is impact, "P" is population, "A" is affluence and "T" is technology. The "IPAT" equation shows that our numbers, how we live, and the technology we use all have an effect on our finite environment.

See our latest news stories and blog posts about the environment below.

Chinese baby
7 January 2019

US and China's population growth at new low

Population growth rates in the US and China are now at 0.6% and 0.4%, respectively. Whilst both countries achieved similar results with very different measures, a lower number of people being added every year is a welcome development on our overstretched planet.

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Sir David Attenborough speaking at COP24
19 December 2018

UN climate talks: disappointments and silver linings

UN climate talks in Poland finished late last Saturday night after two weeks of painfully slow and frustrating negotiations. But what was agreed and will the outcomes help avert catastrophic climate change?

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Migrants walking in Croatia
14 December 2018

Making migration safe

The Global Compact for Safe and Orderly Migration was adopted by countries worldwide this week. It's a welcome and positive move, but does it address all the dangers?

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How to feed the world without destroying it
7 December 2018

How to feed the world without destroying it

A new report investigates the enormous challenge of feeding our rapidly growing population without further damaging our environment and worsening climate change.

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1 December 2018

Protest: together for climate change

Join Population Matters and thousands of others in a march and demonstration to demand meaningful action from the UK government on climate change.

 

Timetable

Assemble from 12pm near the Polish Embassy on Portland Place.

Rally with speeches 12.30-1.30.

March to Downing Street, where the Frack Free United Declaration against fracking will be handed in.

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23 November 2018

Speaking out on climate change

Population Matters' Patron, Sir David Attenborough, is fronting the 'People’s Seat' at the upcoming UN Climate Change Conference in Poland this December. The initiative offers the global public the opportunity to have a presence at discussions through social media.

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20 January 2017

Meet our new chief executive

In December, Robin Maynard started work at Population Matters as our Interim CEO. In this interview, he explains why he is here and what he hopes to achieve.

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Welcome to the Anthropocene Briefing

Illustrated four-page briefing detailing the impact of human population on the planet.

Download
11 October 2017

Livestock, extinction . . . and population

Last week, Population Matters attended the high-profile Livestock and Extinction conference in London. The conference brought together experts on food production, wildlife, the environment, policymaking, and health to examine the impact of industrial agriculture on the natural world and identify solutions.

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2 November 2018

Meet our new President: Jonathon Porritt

One of UK’s most high profile environmental campaigners is to become the new President of Population Matters. Former Green Party leader and director of Friends of the Earth, Jonathon Porritt has been a vocal advocate for population issues and will champion Population Matters’ work in his new role.

 

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