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

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

Travis Court

University of Pittsburgh

United States of America

Joe Liske

Universität Hamburg

Germany

Maria Argudo-Fernández

Pontificia Universidad Católica de Valparaíso

Chile

Amelia Bayo

Universidad de Valparaíso

Chile

Michael Moss

George Washington University

United States of America

Pablo Ramírez Moreta

GMV/ESA

Spain

Melanie Archipley

University of Illinois, Urbana-Champaign

United States of America

Susan Lea

SFSU

United States of America

Rebecca Jensen-Clem

University of California Santa Cruz

United States of America

Jordi Delgado Mengual

CIEMAT-PIC

Spain

Andrea Ahumada

Observatorio Astronómico de la Universidad Nacional de Córdoba

Argentina

Sushanta Mondal

Sidho Kanho Birsha University, Purulia, W.B.

India

Ansgar Wehrhahn

Uppsala University

Sweden

Irene Tamborra

University of Copenhagen

Denmark

Stephen Kane

University of California, Riverside

United States of America

Tim Spuck

Associated Universities Inc. (AUI)

United States of America

Patricia Tissera

Pontificia Universidad Catolica de Chle

Chile

Julia Piotrowska

Jagiellonian University

Poland

Sharon Morsink

University of Alberta

Canada

Luc IJspeert

KU Leuven

Belgium

Maria Gabriela Navarro

Sapienza Universita di Roma / Universidad Andres Bello

Chile

Koraljka Muzic

University of Lisbon

Portugal

Matthias Penselin

Haus der Astronomie Heidelberg

Germany

Stephen Lawrence

Hofstra University

United States of America

Erik Lima

Universidade de São Paulo

Brazil

Marcus Toy

University of Southampton

United Kingdom

Kurtis Williams

Texas A&M University-Commerce

United States of America

João Fidélis Salles

Universidade de São Paulo

Brazil

Anna Lia Longinotti

IA- Universidad Nacional Autonoma de Mexico

Mexico

John Fowler

Caltech, Retired

United States of America

Andrea Tiengo

IUSS Pavia

Italy

Eduardo Sanches

Universidade de São Paulo

Brazil

Eileen Gonzales

Cornell University

United States of America

Matilde Fernandez

IAA-CSIC

Spain

Gregor Seidel

Max Planck Institute for Astronomy

Germany

Jose Carlos del Toro Iniesta

IAA-CSIC

Spain

Bárbara Rojas-Ayala

Instituto de Alta Investigación - U. de Tarapacá

Chile

John Apruzese

retired

United States of America

Michele Ginolfi

ESO

Germany

Andrea Mejías

Universidad Andrés Bello

Chile

Andrew Jaffe

Imperial College London

United Kingdom

Eulalia Gallego Cano

IAA-CSIC

Spain

Amelia Ortiz Gil

University of Valencia

Spain

Marta Civitani

INAF

Italy

Tristano Di Girolamo

University of Naples "Federico II"

Italy

Volodymyr Marchenko

Jagiellonian University

Poland

Geoffrey Ryan

University of Maryland College Park

United States of America

Raquel Ruiz Valença

IAG-USP

Brazil

Carme Gallart

Instituto de Astrofísica de Canarias

Spain

Kevin Covey

Western Washington University

United States of America

Institutional Endorsements

institutional endorsments

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Summer Milky Way, Thoreau, NM. J. Lowenthal

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