Overpopulation In America – And Its Cures

Anne H. Ehrlich, Paul R. Ehrlich

It is more important now than ever to talk about population. What will we do if we […]


Impact of Population Growth

John P. Holdren, Paul R. Ehrlich

It is more important now than ever to talk about population. What will we do if we […]


Who makes the babies?

John P. Holdren, Paul R. Ehrlich

It is more important now than ever to talk about population. What will we do if we […]

Photo by Sailko

Mentally Ill America

Paul R. Ehrlich

This was originally published as a MAHB Blog in June, 2014.  Well, America has had one more […]

Big Speak


Anne H. Ehrlich, Paul R. Ehrlich

Many civilizations have disappeared in the past, but today for the first time a global civilization is […]

train crossing open plains

The Great Mismatch

Daniel Blumstein, Paul R. Ehrlich

This article was originally published in BioScience We live in an extraordinary time where many of our […]

Fox News in lights

The Fox News Effect

Anne H. Ehrlich, Paul R. Ehrlich

Join Paul and Anne Ehrlich on Thursday, September 20th at 5pm PT/8pm ET for a Live Webinar […]

Corn growing along the Kenyan coast of Lake Victoria by Erika Gavenus

Pessimism on the Food Front

Harte, John, Paul R. Ehrlich

Introduction Virtually all trends, biophysical and socioeconomic, suggest that levels of hunger, already high, will only increase […]

The moment when the surface of a soap bubble, broken by a nail, has begun to collapse and fall apart, but hasn't finished yet. Collapse by Sober Rabbit | Flickr | CC BY-NC-ND 2.0

Keep In Mind: The Thugs Running the U.S. Government Are a Small Part of the Story

Anne H. Ehrlich, Paul R. Ehrlich

Everyone seems fascinated by the behavior of the sexual predator who is president of the United States, […]

A garden full of books by Janaina C. Falkiewicz | Flickr | CC BY 2.0

The MAHB, The Arts, and The Humanities

Paul R. Ehrlich

One question I am often asked is how the humanities can help out with the MAHB and […]

The Lights Come On After Sunset at St. Peter's Basilica by Diana Robinson | Flickr | CC BY-NC-ND 2.0

Vatican Visit

Paul R. Ehrlich

I was somewhat apprehensive about taking my invited place at the workshop on biological extinction of the […]

Bird Capture by  Nate Edwards | Flickr | CC BY-NC 2.0

Paul Ehrlich reviews Tobias and Morrison’s most recent book –“Anthrozoology: Embracing Co-Existence in the Anthropocene”

Paul R. Ehrlich

This week’s post is a review of Michael Charles Tobias and Jane Gray Morrison’s most recent book –Anthrozoology: […]

Earth and North America from Space - digitally restored by Royce Bair | Flickr | CC BY-NC-ND 2.0

Opinion: First thoughts on Trump-era science

Anne H. Ehrlich, Paul R. Ehrlich

Stanford researchers Paul and Anne Ehrlich offer suggestions on coping in a world where science suddenly feels […]

The Ivory Tower by Daniel Parks | Flickr | CC BY-NC 2.0

To build a sustainable world, academics need to tear down the Ivory Tower

Barnosky, Anthony D., Hadly, Elizabeth A., Paul R. Ehrlich

Avoiding societal collapse means building bridges between science and the rest of the world. This article originally […]

'Q is for Question Mark' | Photo by Ben R | Flickr | CC BY-NC-ND 2.0

Should There Be A Right To Have As Many Kids As You Want?

Paul R. Ehrlich

Maintaining a civil society depends on a general acceptance of certain human rights and a collective (governmental) […]

Heyfield Fire 18-20th Jan 2013 in Victoria, Australia by Sascha Grant Flickr | CC BY-NC-ND 2.0

Australian Bushfires Signal New Climate Dangers

Beattie, Andrew, Paul R. Ehrlich, Turnbull, Christine

The recent bushfires in Western Australia were much more than “bush” fires as they raged through mature […]

The London School of Economics by Max Nathan | Flickr | CC BY-NC-ND 2.0

Faith-Based Economics: The Corporate World and the Survival of Civilization

Anne H. Ehrlich, Paul R. Ehrlich

 In 1966 distinguished economist Kenneth Boulding wrote: “Anyone who believes that exponential growth can go on forever […]

Saddle-billed stork –one of the beauties of the Okavango Delta. | PR Ehrlich

Beyond the Big Five

Anne H. Ehrlich, Paul R. Ehrlich

For first-time visitors to Africa, the must-see fauna there usually is what hunters used to call the […]

Barley fields of Tso Moriri, Ladakh, India | Photo by Sandeepa Chetan | Flickr | CC BY-NC-ND 2.0

Active commitment to a life-sustaining society: What you can do, now

Paul R. Ehrlich

In Feeding people on our stressed planet will require a “revolution” John Harte and I argued that: “feeding […]

Rifle fish (Archer fish), totemic animal of Rifle Fish Clan  
Photo by Paul Ehrlich and Chris Turnbull

Quinkan Art: Preserving the Deep Past

Anne H. Ehrlich, Beattie, Andrew, Paul R. Ehrlich, Turnbull, Christine

Humanity does not have a good record when it comes to caring for signs of its past accomplishments. Napoleon’s gunners famously […]

Male leaving the nest hole in the termite mound after feeding a chick, which can be seen  in the entrance to the cavity, which is deep enough for the young to retreat far inside | Photo by Paul R. Ehrlich

Another Aussie Parrot at Risk

Anne H. Ehrlich, Beattie, Andrew, Paul R. Ehrlich, Turnbull, Christine

In a previous post to the MAHB Blog the story of the endangered orange-bellied parrot of Tasmania […]

Images Courtesy of Dr. John Mew

A Food and Breathing Problem

Kahn, Sandra, Paul R. Ehrlich

More information on this topic can be found in the recently published book by Sandra Kahn and […]

Didelphis marsupialis from Playa Viva, Mexico

Selfies That Count

Ceballos, Gerardo, Paul R. Ehrlich

The selfie taken by a possum that is posted above was actually posted by us, but we […]

Photo of Kampala Traffic by Tim Abbott |Flickr | CC BY-NC-ND 2.0   (

Population Redux

Paul R. Ehrlich

At long last, and possibly too late, people are beginning once again to realize that the numbers […]

Orange-bellied parrot by Paul Ehrlich

Islands As Harbingers

Anne H. Ehrlich, Paul R. Ehrlich

The decline of animal biodiversity in the Pacific discussed in our last blog is hardly confined to […]

Tuamoto sandpiper c. Peter Harrison

Collapse of Avian Biodiversity in the Pacific

Anne H. Ehrlich, Paul R. Ehrlich

We arrived off Ducie Island at dawn on October 12. The rough seas and the air above […]


Conservation biology and the endarkenment

Paul R. Ehrlich

Frederik Dalerum (2014) has nicely summarized what many of us consider the basic question of how conservation […]

Illustration by Jim Benton accessed from

Environmental Ineffectiveness

Paul R. Ehrlich

Years ago when I was on the board of the Audubon Society, one of the group’s main […]


Ebola, Population, and Evolution: The story the media is not covering

Paul R. Ehrlich

Most of the news coverage of the current Ebola virus epidemic has neglected to inform the public […]

not yet

Not Yet?

Harte, John, Paul R. Ehrlich

The summer 2014 issue of CALIFORNIA, the magazine of the University of California Alumni Association, was touted […]