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

William Waller

The Galactic Inquirer

United States of America

Cathy Horellou

Chalmers University of Technology

Sweden

Loreany de Araújo

Universidade de São Paulo

Brazil

Fabio De Colle

Universidad Nacional Autónoma de México

Mexico

Lucas Degi

IAG-USP

Brazil

Osmar Guerra

IRyA - UNAM

Mexico

Rein Warmels

European Southern Observatory

Germany

Jose María Ezquiaga

University of Chicago

United States of America

Abby Lee

University of Chicago

United States of America

Alexander Criswell

University of Minnesota

United States of America

Francisco Castillo

Universidad Católica de Chile

Chile

ANDRE SILVEIRA

Universidade Federal do Paraná

Brazil

Nolan Dickson

Saint Mary's University

Canada

Vincent Picouet

LAM

France

Thomas Nony

IRyA - UNAM

Mexico

Daniel Seifried

University of Cologne

Germany

Lorenzo Olguin

Universidad de Sonora

Mexico

Adrián Rodríguez

Observatório do Valongo - UFRJ

Brazil

Perla Vázquez

SEP

Mexico

Julien Lozi

Subaru Telescope

United States of America

Daniela Palma

Universidad de Valparaíso

Chile

Eric Lagadec

Observatoire de la Côte d'Azur

France

Oleksiy Ivanyuk

Main Astronomical Observatory of NAS of Ukraine

Ukraine

Jens Kammerer

Space Telescope Science Institute

United States of America

Bernadette Rodgers

Portland Community College/Portland State University/350PDX

United States of America

Elisabete Maria de Gouveia Dal Pino

IAG - Univesidade de Sao Paulo

Brazil

Claudia Lagos

University of Western Australia

Australia

Søren Larsen

Department of Astrophysics/IMAPP, Radboud University

Netherlands

Jakob Walcher

Leibniz Institut für Astrophysik Potsdam

Germany

Evan Kirby

California Institute of Technology

United States of America

David Pereñiguez

Instituto de Física Teórica UAM/CSIC

Spain

Matthew Whitehouse

South Carolina State Museum

United States of America

Wayne Oswald

Ohio University

United States of America

Gloria Raharimbolamena

University of Antananarivo

Madagascar

Steven Bloemen

Radboud University

Netherlands

Rafeh Rehan

University of Toronto

Canada

Lawrence Anderson

University of Toledo

United States of America

Steve Maddox

Cardiff University

United Kingdom

Hayley Agler

University of Toronto

Canada

Ra'ed Bani Abdoh

CTPA (Center of theoretical physics and astrophysics)

Jordan

Riwaj Pokhrel

University of Toledo

United States of America

Tomáš Henych

Astronomical Institute of the Czech Academy of Sciences

Czech Republic

Pierre Kervella

Paris Observatory

France

Francisco Junqueira

University of São Paulo

Brazil

Viviane Costa

San Francisco State University

United States of America

Ayushi Singh

University of Toronto

Canada

Hasan H. Esenoglu

Istanbul University

Turkey

Alessandro Ederoclite

Universidade de São Paulo

Brazil

Sally Oey

University of Michigan

United States of America

Mariana Cano Díaz

Instituto de Astronomía UNAM

Mexico

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.
Summer Milky Way, Thoreau, NM. J. Lowenthal

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