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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

Volker Ossenkopf-Okada

Universität zu Köln

Germany

Manisha Shrestha

Liverpool John Moores University

United Kingdom

Adam Stevens

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

Australia

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

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

Additional Siguatures

Xavier Dumusque

University of Geneva

Switzerland

Manasvee Saraf

International Centre for Radio Astronomy Research (ICRAR)

Australia

Patrick Boissé

IAP - Sorbonne Université

France

Simone Maldera

INFN

Italy

JD Merritt

University of Oregon

United States of America

Sharon Xuesong Wang

Tsinghua University

China

Philip Weber

Julius-Maximilians-Universität Würzburg

Germany

Bruce Edelman

University of Oregon

United States of America

Laurent Lamy

Observatoire de Paris

France

Paula Sarkis

KD

Germany

Michel Tallon

Centre de Recherche Astrophysique de Lyon

France

Charlotte VASTEL

Institut pour la Recherche pour l'Astrophysique et Planétologie

France

Frédérick Poidevin

Instituto de Astrofísica de Canarias

Spain

Richard Nolthenius

Cabrillo College

United States of America

Flavia Amadio

University of Copenaghen

Denmark

Kirsty Feijen

The University of Adelaide

Australia

Nicolas NARDETTO

Observatoire de la Côte d'Azur

France

Nicole Capitaine

Observatoire de Paris

France

Juan Espejo

Swinburne University of Technology

Australia

Niall Smith

MTU Blackrock Castle Observatory

Ireland

Baerbel Koribalski

CSIRO Astronomy and Space Science

Australia

Jérôme Guilet

CEA

France

Greg Sleap

Curtin Institute of Radio Astronomy

Australia

Renate Hinterschuster

ESO

Germany

Jennifer Hoffman

University of Denver

United States of America

Alexander Eggemeier

Durham University

United Kingdom

Fabio Acero

CNRS/CEA-Saclay

France

Ana Torres Campos

Large Millimeter Telescope

Mexico

Kathryn Kooistra

San Francisco State University

United States of America

Guy Perrin

Observatoire de Paris

France

Christopher Lovell

University of Hertfordshire

United Kingdom

Ron Yelton

Sierra Club

United States of America

Toma Chaumont Behrs

EPFL

Switzerland

Olivier Hernandez

Planétarium rio Tinto Alcan

Canada

Evelyne Alecian

Université Grenoble Alpes, CNRS

France

Laura Prichard

Space Telescope Science Institute

United States of America

Stéphane Udry

University of Geneva

Switzerland

Nick Kylafis

University of Crete

Greece

Luan Arbeletche

Instituto de Física de São Carlos, Universidade de São Paulo

Brazil

Michael Wilson

Lawrence Berkeley National Lab.

United States of America

Belén López Martí

Centro de Astrobiología (INTA-CSIC)

Spain

Ashley Bemis

Leiden Observatory

Netherlands

Evangelos Kontizas

National observatoty of Athens

Greece

Andre Grandchamps

Planétarium Rio Tinto Alcan

Canada

Michel Dobrijevic

Laboratoire d'Astrophysique de Bordeaux

France

Myriam Latulippe

Planétarium Rio Tinto Alcan

Canada

Ting-Yun Cheng

Durham University

United Kingdom

Sebastian Kohl

Hamburg Observatory

Germany

Cedric Lacey

Durham University

United Kingdom

Joel Yam

Universidad de Quintana Rooi

Mexico

Institutional Endorsements

institutional endorsments

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