Envelope Facebook Twitter Instagram Vimeo
Join Us

Open Letter

To Astronomy Departments, Institutions and Societies:
Adopt Sustanability as a Primary Goal.

We, astronomers, astrophysicists,
and global citizens…

  1. Recognize the urgency of the climate crisis and our impact on it.
  2. We also recognize that we have the power to change our current practices.
  3. We call on astronomical institutions worldwide to set an example for the field in mitigating our contribution to the climate crisis by:
  • Naming sustainability as a primary goal.
  • Putting in place specific sustainable practices to lower carbon emissions.
  • Clearly communicating these changes both to their own members and the general public.

Translations available in English, Dutch, Italian, German, Portuguese, Spanish, and Turkish.

PDF of Open Letter     
Press Inquires: Contact
PDF of Press Release
Link to Press Kit Media

More than 2859 astronomers from 81 countries

recognize that there is no Planet B!

Scroll down to see a full list of signees and institutional endorsements.

signatures per country map

Open Letter Team Signatures

Jacob White

National Radio Astronomy Observatory

United States of America

Michelle Willebrands

Leiden Observatory

Netherlands

Manisha Shrestha

Liverpool John Moores University

United Kingdom

Adam Stevens

International Centre for Radio Astronomy Research / The University of Western Australia

Australia

Volker Ossenkopf-Okada

Universität zu Köln

Germany

Wendy Crumrine

University of Southern California

United States of America

Hannah Dalgleish

University of Namibia

United Kingdom

Sarah Deveny

Texas Tech University

United States of America

Debra Fischer

Yale University

United States of America

Gabriele Betancourt-Martinez

Institut de Recherche en Astrophysique et Planétologie

France

Abigail Frost

KU Leuven

Belgium

Tobias Beuchert

European Southern Observatory

Germany

Benjamin Gompertz

University of Birmingham

United Kingdom

Abhijeet Borkar

Astronomický Ústav AV ČR

Czech Republic

Victoria Grinberg

Eberhard Karls Universität Tübingen

Germany

Toby Brown

National Research Council

Canada

Violette Impellizzeri

Leiden Observatory

Netherlands

Leo Burtscher

Leiden Observatory

Netherlands

Knud Jahnke

Max Planck Institute for Astronomy

Germany

Faustine Cantalloube

Laboratoire d'Astrophysique de Marseille

France

Gina Maffey

The Wildeor Foundation

Netherlands

Adrienne Cool

San Francisco State University

United States of America

Additional Siguatures

Duy Hoang

Hamburg University

Germany

Marcel Agüeros

Columbia University

United States of America

Roisín Brogan

The Leibniz Institute for Astrophysics Potsdam

Germany

Simon Pfeifer

Leibniz-Institut für Astrophysik Potsdam

Germany

Luca Riitano

University of Wisconsin-Madison

United States of America

Gianluca Chiozzi

ESO

Germany

David Kipping

Columbia University

United States of America

Daniel Hernandez

Ludwig Maximilians Universität München

Germany

Ewald Puchwein

Leibniz-Institut für Astrophysik Potsdam

Germany

Germán Chaparro

Universidad de Antioquia

Colombia

Riccardo Seppi

MPE

Germany

Yohana Herrero

AIP

Germany

Robert Simon

Universität zu Köln

Germany

Tomas Rutherford

University of Sydney

Australia

Natalia Zywucka-Hejzner

North-West University

South Africa

Elvire De Beck

Chalmers University of Technology

Belgium

Eric Rohr

Max Planck Institut für Astronomie

Germany

Rainer Wichmann

Universität Hamburg

Germany

Nikolay Kacharov

Leibniz-Institut-für-Astrophysik Potsdam

Germany

Margaret Meaney

University of Toronto

Canada

Cosimo Inserra

Cardiff University

United Kingdom

Ekaterina Ilin

Leibniz-Institut für Astrophysik Potsdam

Germany

Verlon Etsebeth

University of the Western Cape

South Africa

William Wall

Retired

Canada

Sam Berek

University of Toronto

Canada

Iker Millán Irigoyen

Centro de Investigaciones Energéticas Medioambientales y Tecnológicas

Spain

Mohanraj Senniappan

Linnaeus University

Sweden

Oscar Barragán

University of Oxford

United Kingdom

Manisha Dwa

Nepal Astronomical Society

Nepal

Junjie Mao

University of Strathclyde

United Kingdom

Benjamin Giblin

University of Edinburgh

United Kingdom

verstraete laurent

Institut d'Astrophysique Spatiale, Univ. Paris-Saclay

France

Miika Pursiainen

Technical University of Denmark

Denmark

Samantha Stever

Okayama University

Japan

Sarah Moran

Johns Hopkins University

United States of America

Robert Massey

Royal Astronomical Society

United Kingdom

Famil Mustafa

Shamakhy Astrophysical Observatory named after N.Tusi

Azerbaijan

Andrea Merloni

Max-Planck Institute for Extraterrestrial Physics

Germany

Eduardo Telles

Observatório Nacional, Rio de Janeiro

Brazil

Rafael Bachiller

Observatorio Astronómico Nacional

Spain

Federico Lelli

INAF - Arcetri Astrophysical Observatory

Italy

Irene Porro

Framingham Sate University, Christa McAuliffe Center

United States of America

Riccardo Arcodia

Max-Planck Institute for Extraterrestrial Physics

Germany

Luana Natalie Padilha

Universidade tecnológica federal do Paraná

Brazil

Annabella Meech

University of Oxford

United Kingdom

Nancy Elias-Rosa

INAF - Osservatorio Astronomico di Padova

Italy

Diana Ismail

Laboratoire d'Astrophysique de Marseille

France

Sharan Banagiri

University of Minnesota

United States of America

Boris Leistedt

Imperial College London

United Kingdom

Larry Gladney

Yale University

United States of America

Institutional Endorsements

institutional endorsments

Join Us

A4E invites scientists, astronomy educators, amateurs and students to join in the effort to combat the climate crisis from an astronomical perspective.
Become a Member
Summer Milky Way, Thoreau, NM. J. Lowenthal

Support Us

Help us to address climate change
from an astronomical perspective.
Donate Now