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

Nasser Alkadi

Syrian Astronomical Asscocation

Syria

Jan Eberhardt

Max-Planck-Institut für Astronomie

Germany

Sanne Bloot

Leiden Observatory

Netherlands

Geronimo Villanueva

NASA Goddard Space Flight Center

United States of America

Stéphane Blondin

Laboratoire d'Astrophysique de Marseille

France

Sukhjit Singh

SGTB Khalsa College, Delhi University

India

Walter Klahold

Green Bank Observatory

United States of America

Mathieu Servillat

Observatoire de Paris

France

Fabrícia Barbosa

Universidade de São Paulo

Brazil

Thushara Pillai

Boston University

United States of America

Joel Roediger

NRC Herzberg Astronomy & Astrophysics Research Centre

Canada

Juande Santander-Vela

SKAO

United Kingdom

Jasna Czepanski

ESO

Germany

Edilberto Suárez-Torres

Universidad Distrital "Francisco José de Caldas"

Colombia

Matthias Seidel

European Southern Observatory

Germany

Sven De Rijcke

Ghent University

Belgium

Melissa McClure

Leiden University

Netherlands

Sheila Kannappan

University of North Carolina at Chapel Hill

United States of America

Anne-Laure Cheffot

INAF - Osservatorio Astrophysico di Arcetri

Italy

Sergio Fernández-Acosta

Gran Telescopio Canarias

Spain

Raoul Canameras

Max Planck Institute for Astrophysics

Germany

Nathalie Fourniol

ESO

Germany

Mary Holt

California Academy of Sciences

United States of America

Marios Karouzos

Nature Astronomy

United Kingdom

Guido Agapito

INAF - Arcetri

Italy

Jeff Wagg

SKAO

United Kingdom

Raphaelle Haywood

University of Exeter

United Kingdom

Ben Bafaloukos

Green Bank Observatory

United States of America

Nick Cox

ACRI-ST

France

Calum Hawcroft

KU Leuven

Belgium

Katrina Miller

University of Chicago

United States of America

Andrew Burkhardt

Center for Astrophysics | Harvard & Smithsonian

United States of America

Theresa Fisher

Arizona State University

United States of America

Lucas Grosset

KIPAC - Stanford University

United States of America

Olivier Berne

IRAP (CNRS & Univ Toulouse)

France

Alexandre Costa

European Association for Astronomy Education

Portugal

Theresa Maiyamma

St. Peter's College Garaku

Nigeria

Joana Kramer

Max Planck Institute for Radio Astronomy

Germany

Catherine Espaillat

Boston University

United States of America

Lasse Berthelsen

DTU Space

Denmark

Dilem GÖKTAŞ

Atatürk Universty

Turkey

Yik Ki Ma

Australian National University

Australia

Alessandro Carosi

University of Geneva

Switzerland

Aaron Parsons

UC Berkeley

United States of America

Seo-Won Chang

Seoul National University

Korea, South

Ivan TESTART

Photonics France

France

Lei Chen

Konkoly Observatory

Hungary

Thomas RAVINET

University of Copenhagen

Denmark

DeAndre Lesley

RECONS

United States of America

Uzan Jean-Philippe

Institut d'astrophysique de paris

France

Institutional Endorsements

institutional endorsments

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

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