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

Judy Chebly

Leibniz institute for astrophysics

Germany

Diego Mardones

Universidad de Chile

Chile

Enise Ercan

Bogazici University

Turkey

Alban Remillieux

CRAL

France

Giampaolo Vettolani

INAF

Italy

Anna Ferre-Mateu

ICCUB

Spain

David Bogensberger

Max Planck Institute of Extraterrestrial Physics

Germany

Sarah McDonald

Liverpool John Moores University

United Kingdom

Julio David Melon Fuksman

Max Planck Institute for Astronomy

Argentina

Pablo Corcho-Caballero

Autonomous University of Madrid

Spain

Catherine Manea

University of Texas at Austin

United States of America

Mäusli Pierre-Alain

EPFL

Switzerland

Elżbieta Kuligowska

Astronomical Observatory of the Jagiellonian University

Poland

Scott Trager

University of Groningen

Netherlands

Kimberly Emig

National Radio Astronomy Observatory

United States of America

Christopher Manser

Imperial College London

United Kingdom

Axel Schwope

Leibniz-Institut für Astrophysik Potsdam (AIP)

Germany

Sankarshana Srinivasan

University of Manchester

United Kingdom

Pierluigi Rinaldi

Kapteyn Astronomical Institute

Netherlands

Javier Coronado-Blázquez

Instituto de Física Teórica IFT UAM-CSIC

Spain

Arpita Misra

Jagiellonian University

Poland

Carol Lonsdale

National Radio Astronomy Observatory

United States of America

Daniele Spadaro

National Institute for Astrophysics - Astrophysical Observatory of Catania

Italy

Anna Rosen

Harvard

United States of America

Alysa Obertas

University of Toronto

Canada

Hans-Jürgen Hagen

Hamburger Sternwarte

Germany

Anastasia Kilina

ISAE-SUPAERO

France

Bonaventure Okere

NASRDA Centre for Basic Space Science.

Nigeria

Sean O'Brien

University of Warwick

United Kingdom

Maria Charisi

Vanderbilt University

United States of America

Markus Nielbock

Max Planck Institute for Astronomy

Germany

Caroline Heneka

Hamburg Observatory

Germany

Maren Hempel

Universidad Andres Bello

Chile

Sarita Vig

IIST

India

Luca Di Mascolo

Università degli Studi di Trieste

Italy

Sylvie VAUCLAIR

Institut de recherche en astrophysique et planétologie

France

Antonio Pensabene

INAF-OAS

Italy

Björn Eichmann

RUB

Germany

Guilherme Couto

Universidad de Antofagasta

Chile

Adamantia Paizis

INAF

Italy

Johannes Veh

Erlangen Centre for Astroparticle Physics

Germany

Jiayi Sun

The Ohio State University

United States of America

Stavros Akras

Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing / NOA

Greece

Michal Ostrowski

Jagiellonian University

Poland

Gabrijela Zaharijas

UNG

Slovenia

Davor Krajnović

Leibniz-Institut für Astrophysik Potsdam

Germany

Delphine Perrodin

INAF - Osservatorio Astronomico di Cagliari

Italy

Greg Taylor

University of New Mexico

United States of America

Anna Murphree

University of Hawaii

United States of America

Isabelle Jarry

Universidad Andres Bello

Chile

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

Support Us

Help us to address climate change
from an astronomical perspective.