Tyndall Petition

The petition puts faces to the scientific agreement on the significant risks of Earth’s changing climate. Explore the petition and credentials of each signatory below.

Why was the petition Started?

According to a Yale University study, over 90% of scientists agree climate change is being caused by people yet only about 50% of the general public believes there is scientific agreement. To bridge this gap, we started the Tyndall Petition to allow climate experts to easily and publicly voice their position on climate change. Scientists have many responsibilities and public outreach is not usually one of them. 

Why is it called the Tyndall Petition?

It is named after John Tyndall, a British scientist that discovered the heat-trapping properties of carbon dioxide and other greenhouse gases in 1859. He was also a skilled speaker and author, who specialized in sharing science with the public. Over his lifetime he gave hundreds of presentations and wrote over a dozen books in support of educating the public.

“There is overwhelming scientific evidence that people are warming the Earth beyond natural variability. This position is held by virtually all climate scientists, NASA, and the Intergovernmental Panel on Climate Change (the world’s most authoritative organization on climate change).

 

The question today is no longer if man-made climate change is happening, but how its challenges can be solved by human ingenuity. We must rapidly reduce our greenhouse gas emissions in order to minimize the significant risks of climate change, such as more extreme heat waves, prolonged droughts and severe floods. Our actions will have lasting impacts on generations to come.”

Who’s signed?

SIGNATORIES

from

INSTITUTIONS

Meet the Signatories

*Note: Website is highly preliminary & not all signatories have been uploaded

Browse by institution:

Kathleen Farley

Kathleen Farley

Marco Tedesco

Marco Tedesco

Larry Peterson

Larry Peterson

Duane Waliser

Duane Waliser

Brian Haley

Brian Haley

Scott Curtis

Scott Curtis

Jim Happell

Jim Happell

Bin Wang

Bin Wang

Emily Meineke

Emily Meineke

John Horel

John Horel

Reginald Barrett

Reginald Barrett

Derek Posselt

Derek Posselt

George Philander

George Philander

Dusan Zrnic

Dusan Zrnic

Rosana Ferreira

Rosana Ferreira

Isabel Rivera-Collazo

Isabel Rivera-Collazo

Ben Zuckerman

Ben Zuckerman

Chris Poulsen

Chris Poulsen

Baylor Fox-Kemper

Baylor Fox-Kemper

Kathleen Treseder

Kathleen Treseder

David Archer

David Archer

Cort Anastasio

Cort Anastasio

David J. Burdige

David J. Burdige

Emily Bernhardt

Emily Bernhardt

Holger Brix

Holger Brix

Jerry Smith

Jerry Smith

Eric Leibensperger

Eric Leibensperger

Bill Johns

Bill Johns

Anders Levermann

Anders Levermann

Dan Cayan

Dan Cayan

Jialin Lin

Jialin Lin

Dan Westervelt

Dan Westervelt

Mati Kahru

Mati Kahru

Jennifer Kay

Jennifer Kay

Elsa Cleland

Elsa Cleland

David Auston

David Auston

Benjamin Zaitchik

Benjamin Zaitchik

Eugene Cordero

Eugene Cordero

William Dewar

William Dewar

Claire Paris

Claire Paris

Alexander Hayes

Alexander Hayes

Ed Maurer

Ed Maurer

Karen Shell

Karen Shell

Janet Sprintall

Janet Sprintall

Paul Dayton

Paul Dayton

Dan DiResta

Dan DiResta

Jerald Schnoor

Jerald Schnoor

John van Leer

John van Leer

Brian Helmuth

Brian Helmuth

Lisa Collins

Lisa Collins

Dennis Hartmann

Dennis Hartmann

James Sherman

James Sherman

Pedro DiNezio

Pedro DiNezio

Josh Foster

Josh Foster

Claudia Benitez-Nelson

Claudia Benitez-Nelson

Jeffrey Kiehl

Jeffrey Kiehl

Kimberly Ellen Samuels-Crow

Kimberly Ellen Samuels-Crow

Eli Melaas

Eli Melaas

Kelsey Winsor

Kelsey Winsor

George Keller

George Keller

Brian Medeiros

Brian Medeiros

Lucinda Shellito

Lucinda Shellito

David Lawrence

David Lawrence

John Abraham

John Abraham

Margaret LeMone

Margaret LeMone

Raymond De Young

Raymond De Young

Claudia Czimczik

Claudia Czimczik

John Chiang

John Chiang

Charles Gertler

Charles Gertler

Andrew McDonnell

Andrew McDonnell

Valerie Eviner

Valerie Eviner

John Dilles

John Dilles

Scott Durski

Scott Durski

Anthony Janetos

Anthony Janetos

James Done

James Done

Etienne Dunn Sigouin

Etienne Dunn Sigouin

Michael Previdi

Michael Previdi

Claudia Mohr

Claudia Mohr

Matthew Alkire

Matthew Alkire

Charles Zender

Charles Zender

Jeffrey Barnes

Jeffrey Barnes

Ian Fenty

Ian Fenty

Elizabeth Maroon

Elizabeth Maroon

Jose-Luis Jimenez

Jose-Luis Jimenez

Jeremy McGibbon

Jeremy McGibbon

James Maslanik

James Maslanik

Zoltan Szuts

Zoltan Szuts

Michael Ross

Michael Ross

Laurence Delina

Laurence Delina

Danica Lombardozzi

Danica Lombardozzi

Kerry Emanuel

Kerry Emanuel

Bruce H Vaughn

Bruce H Vaughn

Grant Deane

Grant Deane

Harold Wanless

Harold Wanless

Chris E. Forest

Chris E. Forest

Charles Greene

Charles Greene

Anton Seimon

Anton Seimon

Donald Wuebbles

Donald Wuebbles

Joshua Graff Zivin

Joshua Graff Zivin

Justin Mankin

Justin Mankin

Bryan G. Mark

Bryan G. Mark

Kelvin Richards

Kelvin Richards

Alexey Kaplan

Alexey Kaplan

Hiroyuki Murakami

Hiroyuki Murakami

Jorie Clark

Jorie Clark

Michael Behrenfeld

Michael Behrenfeld

Justin Wettstein

Justin Wettstein

Chris Moser

Chris Moser

Waleed Abdalati

Waleed Abdalati

Francisco Beron-Vera

Francisco Beron-Vera

Ashok Gadgil

Ashok Gadgil

John Parker

John Parker

Dennis Baldocchi

Dennis Baldocchi

Josh Gellers

Josh Gellers

Kenneth Broad

Kenneth Broad

Carl Bernacchi

Carl Bernacchi

Christine Brandon

Christine Brandon

Aman Gupta

Aman Gupta

Guy Masters

Guy Masters

Greg Hakim

Greg Hakim

Manuel Lerdau

Manuel Lerdau

Jingfeng Wu

Jingfeng Wu

Stuart Evans

Stuart Evans

Gifford H. Miller

Gifford H. Miller

Jean Lynch-Stieglitz

Jean Lynch-Stieglitz

Annalisa Bracco

Annalisa Bracco

Bart Geerts

Bart Geerts

Qiang Fu

Qiang Fu

Jeremy Fyke

Jeremy Fyke

Charles L. Rosenfeld

Charles L. Rosenfeld

Peter Berck

Peter Berck

Kathie Dello

Kathie Dello

Lee Kump

Lee Kump

Denis Felikson

Denis Felikson

Simon Donner

Simon Donner

Lisa Levin

Lisa Levin

Jeff Salacup

Jeff Salacup

Henry Hespenheide

Henry Hespenheide

Jennifer Pontius

Jennifer Pontius

Drew Shindell

Drew Shindell

Angeline Pendergrass

Angeline Pendergrass

Alex Hall

Alex Hall

Deepak Rajagopal

Deepak Rajagopal

Frank Millero

Frank Millero

Andy Rhines

Andy Rhines

Cully Nordby

Cully Nordby

Anne Stoner

Anne Stoner

Mark Meo

Mark Meo

Hilary Arnold Godwin

Hilary Arnold Godwin

Eric Rignot

Eric Rignot

Adam Kent

Adam Kent

Ralph Keeling

Ralph Keeling

David Sandwell

David Sandwell

Michael Loik

Michael Loik

John McManus

John McManus

Edwin Gerber

Edwin Gerber

Kathleen Johnson

Kathleen Johnson

Andreas Schmittner

Andreas Schmittner

Lauren Schmeisser

Lauren Schmeisser

John Monteverdi

John Monteverdi

Erik Ivins

Erik Ivins

Daniel Jaffe

Daniel Jaffe

Mary Santelmann

Mary Santelmann

Ellen Mosley-Thompson

Ellen Mosley-Thompson

Mark Flanner

Mark Flanner

Daniel Rothenberg

Daniel Rothenberg

Jennifer Swenson

Jennifer Swenson

Robert Duncan

Robert Duncan

Burrell Montz

Burrell Montz

Alexander Gershunov

Alexander Gershunov

Emily Bernhardt

Emily Bernhardt

Ronald Drayson

Ronald Drayson

Kim Elmore

Kim Elmore

Daniel Tyler

Daniel Tyler

Bill Stigliani

Bill Stigliani

Brent Dalrymple

Brent Dalrymple

Ji Nie

Ji Nie

Carl Wunsch

Carl Wunsch

Anne Nolin

Anne Nolin

Anthony Barnosky

Anthony Barnosky

Edward Brook

Edward Brook

John Fasullo

John Fasullo

Arjun Heimsath

Arjun Heimsath

Ellyn Enderlin

Ellyn Enderlin

Joshua Willis

Joshua Willis

Gilbert Masters

Gilbert Masters

Steven Allison

Steven Allison

Christian Shorey

Christian Shorey

Gigi Owen

Gigi Owen

Brian Gaylord

Brian Gaylord

Michael Diamond

Michael Diamond

Barry Huebert

Barry Huebert

Erin Pettit

Erin Pettit

Laura Tenenbaum

Laura Tenenbaum

Angelicque White

Angelicque White

Warren Allmon

Warren Allmon

Courtenay Strong

Courtenay Strong

Eugene Cordero

Eugene Cordero

Etienne Dunn-Sigouin

Etienne Dunn-Sigouin

Akhilesh Mishra

Akhilesh Mishra

Becky Alexander

Becky Alexander

Anthony England

Anthony England

Keah Schuenemann

Keah Schuenemann

Joanie Kleypas

Joanie Kleypas

Hallie Eakin

Hallie Eakin

Alan Robock

Alan Robock

Marnie Jo Zirbel

Marnie Jo Zirbel

Elizabeth Deakin

Elizabeth Deakin

Casey Hilgenbrink

Casey Hilgenbrink

Kerry Cook

Kerry Cook

Mark Miesch

Mark Miesch

Benjamin Brown-Steiner

Benjamin Brown-Steiner

Cecilia Bitz

Cecilia Bitz

Hal Batchelder

Hal Batchelder

Elizabeth Burakowski

Elizabeth Burakowski

Meredith A. Kelly

Meredith A. Kelly

Igor Kamenkovich

Igor Kamenkovich

June-Yi Lee

June-Yi Lee

Jamie D. Mitchem

Jamie D. Mitchem

Benjamin Laabs

Benjamin Laabs

Steve Beissinger

Steve Beissinger

Daniel Schrag

Daniel Schrag

Dennis Hansell

Dennis Hansell

Colin Raymond

Colin Raymond

Ben Sanderson

Ben Sanderson

Rob Dunbar

Rob Dunbar

Darren Ficklin

Darren Ficklin

Barry Sherr

Barry Sherr

Chad A Greene

Chad A Greene

Darryn Waugh

Darryn Waugh

J. A. Rial

J. A. Rial

Aaron Donohoe

Aaron Donohoe

Anthony Wexler

Anthony Wexler

Laurent Pilon

Laurent Pilon

Chris O’Dell

Chris O’Dell

Jonathan Aurnou

Jonathan Aurnou

Daniel Bedford

Daniel Bedford

Dale Durran

Dale Durran

Alyssa Atwood

Alyssa Atwood

Eric Chassignet

Eric Chassignet

David Checkley

David Checkley

Karen McKinnon

Karen McKinnon

Darin Toohey

Darin Toohey

Elbert Friday

Elbert Friday

Mark Donelan

Mark Donelan

Petra Dekens

Petra Dekens

Lisa Ballance

Lisa Ballance

Bruce McCarl

Bruce McCarl

Gene Rochlin

Gene Rochlin

Deepti Singh

Deepti Singh

Graham Fogg

Graham Fogg

Alan Mix

Alan Mix

Michael King

Michael King

Charles Jones

Charles Jones

Laurie Juranek

Laurie Juranek

Heather Lazrus

Heather Lazrus

Don Wuebbles

Don Wuebbles

Marcia Baker

Marcia Baker

Corinne James

Corinne James

Amy Leventer

Amy Leventer

Huikyo Lee

Huikyo Lee

Daniel Kammen

Daniel Kammen

Robert Davies

Robert Davies

Jonathan Nash

Jonathan Nash

Baoqiang Xiang

Baoqiang Xiang

Clay Tabor

Clay Tabor

Eric Salathé

Eric Salathé

Brian Haus

Brian Haus

Greg McFarquhar

Greg McFarquhar

Maria Herrmann

Maria Herrmann

Kirk R. Smith

Kirk R. Smith

Steven Emerson

Steven Emerson

Catherine Degroot-Hedlin

Catherine Degroot-Hedlin

Arthur Mariano

Arthur Mariano

Brian Tissot

Brian Tissot

Andrew Ford

Andrew Ford

Jeffrey Gee

Jeffrey Gee

Anthony Fisher

Anthony Fisher

James Syvitski

James Syvitski

Jordan Clark

Jordan Clark

George Waldbusser

George Waldbusser

Andrew Meigs

Andrew Meigs

Julia Baum

Julia Baum

Jack Williams

Jack Williams

Megumi Chikamoto

Megumi Chikamoto

Rosie Fisher

Rosie Fisher

Thom Davis

Thom Davis

David Archer

David Archer

James Gerber

James Gerber

Amy Clement

Amy Clement

Kevin Trenberth

Kevin Trenberth

David Lea

David Lea

Daehyun Kim

Daehyun Kim

Catherine Gautier

Catherine Gautier

David Kreamer

David Kreamer

Ryan Fogt

Ryan Fogt

Jeffrey Severinghaus

Jeffrey Severinghaus

Brian Magi

Brian Magi

Halstead Harrison

Halstead Harrison

Jonathan Overpeck

Jonathan Overpeck

Matthew Betts

Matthew Betts

David Graham

David Graham

John Froines

John Froines

Douglas H. Clark

Douglas H. Clark

Kendrick Taylor

Kendrick Taylor

Kent Keller

Kent Keller

Frank Davis

Frank Davis

Jared H. Bowden

Jared H. Bowden

Jeff Weber

Jeff Weber

Bill Patzert

Bill Patzert

Jessica Kleiss

Jessica Kleiss

Andrew Lucas

Andrew Lucas

Dimitris Giannakis

Dimitris Giannakis

Josh McGowan

Josh McGowan

James Coakley

James Coakley

Kristen DeAngelis

Kristen DeAngelis

Jeff Baldwin

Jeff Baldwin

Dalia Patino-Echeverri

Dalia Patino-Echeverri

Michael Rawlins

Michael Rawlins

Susanne Benze

Susanne Benze

Marjy Friedrichs

Marjy Friedrichs

Kerry Emanuel

Kerry Emanuel

Charles Long

Charles Long

Ken Davis

Ken Davis

David Kanter

David Kanter

Gidon Eshel

Gidon Eshel

LeRoy Westerling

LeRoy Westerling

Alan Shapiro

Alan Shapiro

Bjoern Hagen

Bjoern Hagen

Larissa Back

Larissa Back

Christopher Rozoff

Christopher Rozoff

Curtis Deutsch

Curtis Deutsch

Bradley Markle

Bradley Markle

Alison Anders

Alison Anders

John Whitehead

John Whitehead

Ben Santer

Ben Santer

Robert Allen

Robert Allen

Katie Watkins-Brandt

Katie Watkins-Brandt

Baird Langenbrunner

Baird Langenbrunner

Donald Olson

Donald Olson

Andrew Bakun

Andrew Bakun

Daniel Dixon

Daniel Dixon

James Swift

James Swift

H. Annamalai

H. Annamalai

Ala Khazendar

Ala Khazendar

Bonnie Light

Bonnie Light

LuAnne Thompson

LuAnne Thompson

Kathy Jacobs

Kathy Jacobs

Matthew Alford

Matthew Alford

Andrew Latimer

Andrew Latimer

Sally Benson

Sally Benson

David Hastings

David Hastings

Hari M. Osofsky

Hari M. Osofsky

Brian Toon

Brian Toon

Arthur Miller

Arthur Miller

Colleen Petrik

Colleen Petrik

Erich Osterberg

Erich Osterberg

Larry Mahrt

Larry Mahrt

Daniel Neuhauser

Daniel Neuhauser

Allan Clarke

Allan Clarke

W Gary Ernst

W Gary Ernst

Demian Hommel

Demian Hommel

Andrew Thurber

Andrew Thurber

Beverly Law

Beverly Law

Jinbao Li

Jinbao Li

David Nolan

David Nolan

Ellen Druffel

Ellen Druffel

Ian Macdonald

Ian Macdonald

Hermann Engelhardt

Hermann Engelhardt

Hayley Dosser

Hayley Dosser

Jade d’Alpoim Guedes

Jade d’Alpoim Guedes

Jinwon Kim

Jinwon Kim

Ellyn Enderlin

Ellyn Enderlin

Adina Paytan

Adina Paytan

Kennedy Rubert-Nason

Kennedy Rubert-Nason

Dargan Frierson

Dargan Frierson

Bing Fu

Bing Fu

Josh Schimel

Josh Schimel

Evan Kalina

Evan Kalina

Ben Kirtman

Ben Kirtman

Douglas Martinson

Douglas Martinson

Joerg Schaefer

Joerg Schaefer

Julia Smith Wellner

Julia Smith Wellner

Michael Mann

Michael Mann

John Harte

John Harte

James White

James White

John Arnfield

John Arnfield

Chester Mikhail

Chester Mikhail

Gary Yohe

Gary Yohe

John Miller

John Miller

Anthony Didlake, Jr

Anthony Didlake, Jr

Eniko Szekely

Eniko Szekely

Lini Wollenberg

Lini Wollenberg

Beata Csatho

Beata Csatho

Christopher Harley

Christopher Harley

Kim Cobb

Kim Cobb

Ian Flitcroft

Ian Flitcroft

Janel Hanrahan

Janel Hanrahan

Glen MacDonald

Glen MacDonald

Simon de Szoeke

Simon de Szoeke

James McNerney

James McNerney

Eric Smith

Eric Smith

Katinka Bellomo

Katinka Bellomo

Edward Parson

Edward Parson

Christine Shields

Christine Shields

Matthew Kumjian

Matthew Kumjian

Christo Buizert

Christo Buizert

Junjie Zhang

Junjie Zhang

Roger Bales

Roger Bales

John Abatzoglou

John Abatzoglou

Carlos Moffat

Carlos Moffat

Anastasia Romanou

Anastasia Romanou

Daniel Cziczo

Daniel Cziczo

Richard Barber

Richard Barber

Evelyn Sherr

Evelyn Sherr

Marta Torres

Marta Torres

Julia Cole

Julia Cole

David Letson

David Letson

Hao Luo

Hao Luo

Thomas Ackerman

Thomas Ackerman

Kyle Armour

Kyle Armour

Peter Franks

Peter Franks

Gary Griggs

Gary Griggs

*Signatories sign on as individuals and not on behalf of their institutions.

How signatories are added

Each signatory is individually evaluated by our staff to ensure that they meet our standards as a climate expert. We prioritize those who conduct research, work at reputable institutions, and have highly relevant backgrounds. More→

Request to Sign

If you work in or specialize in climate science or a highly-related field, please email us at tyndallpetition@climatepedia.org from your work email with a curriculum vitae and a link to your work website for consideration.