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     
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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

Michelle Willebrands

Leiden Observatory

Netherlands

Jacob White

National Radio Astronomy Observatory

United States of America

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

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

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

Additional Siguatures

Brooke Polak

Institute of Theoretical Astrophysics, University of Heidelberg

Germany

Alessandro Trani

The University of Tokyo

Japan

Guillaume Chaverot

University of Geneva

Switzerland

Dennis Just

Pima College

United States of America

Tiphaine Lagadec

Australian National University

Australia

Hugo Tranin

IRAP

France

Etienne Jaupart

CRAL- ENS Lyon

France

Christoph Engler

ZAH/MPIA Heidelberg

Germany

Margot Nicolau

Earth

New Zealand

Melissa Halford

Auburn University

United States of America

Marion Farcy

Centre de Recherche Astrophysique de Lyon (CRAL)

France

Léna Arthur

Laboratoire APC, Université de Paris

France

Holger Drass

Rubin Observatory

Chile

Benoit Carry

Observatoire de la Côte d'Azur

France

Sebastian Kiehlmann

Foundation of Research and Technology - Hellas

Greece

Bill Dent

ALMA

Chile

Hermann Brunner

Max-Planck-Institut für extraterrestrische Physik

Germany

Paz Bluhm

Heidelberg Universität (LSW)

Germany

Yvelice Castillo

Universidad Nacional Autónoma de Honduras

Honduras

Kristian Ehlert

Leibniz Institute Astrophysics Potsdam

Germany

Pierre Kern

IPAG - CNRS - Université Grenoble Alpes

France

Gustavo Niz

Universidad de Guanajuato

Mexico

Christophe Pixius

Heidelberg University

Germany

Ramona Núñez-López

Universidad de Sonora

Mexico

Anna Jacyszyn

ARI Heidelberg

Germany

Francisco J Carrera

Instituto de Física de Cantabria (CSIC-UC), Spain

Spain

François Bouchy

Geneva Observatory

Switzerland

Gerard Massacrier

Observatoire de Lyon

France

Joseph Eggen

University of Maryland College Park

United States of America

Navpreet Kaur

KTH Royal Institute of Technology

Sweden

Gustavo Medina Toledo

Heidelberg Universitat

Germany

Jesse Palmerio

Observatoire de Paris

France

Elena Terlevich

Inst. Nacional de Astrofisica Optica y Electronica

Mexico

Pascal Bonnefond

Observatoire de Paris

France

Karan Molaverdikhani

LSW Heidelberg

Germany

Shanthala Gorur Ashwath

University of California Berkeley

United States of America

Kira Strelow

Leiden Observatory

Netherlands

Nicole Meyer-Vernet

CNRS, Observatoire de Paris

France

Dane Späth

University of Heidelberg

Germany

Thales Gutcke

MPA

Germany

Isabelle VAUGLIN

CRAL - Observatoire de Lyon

France

Bernd Vollmer

Observatoire astronomique de Strasbourg

France

Natalie Webb

Institut de Recherche en Astrophysique et Planétologie

France

Natalie Batalha

UC Santa Cruz

United States of America

GUIDO THIMM

Center for Astronomy of Heidelberg University (ZAH)

Germany

Beatriz Campos Estrada

Niels Bohr Institute, University of Copenhagen

Denmark

Jérémy Fensch

ENS de Lyon / CRAL

France

Samantha Brown Sevilla

Max Planck Institute for Astronomy

Germany

Dongwook Lim

Zentrum für Astronomie der Universität Heidelberg

Germany

Renate Hinterschuster

ESO

Germany

Institutional Endorsements

institutional endorsments

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Summer Milky Way, Thoreau, NM. J. Lowenthal

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