Envelope Facebook Twitter Instagram Vimeo
Join Us

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.
Read Full Text Here

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

Eric Buchlin

CNRS

France

Clément Ranc

Institut d'Astrophysique de Paris

France

Jean-Louis Monin

Université Grenoble Alpes

France

Polly Gill

Durham University

United Kingdom

Didier Fraix-Burnet

CNRS

France

Ivan Agudo

IAA-CSIC

Spain

Sylvaine Turck-Chièze

CEA

France

James Agostino

University of Toledo

United States of America

Louise Dyregaard Nielsen

Oxford University

United Kingdom

Jean-Pierre Maillard

Institut d'Astrophysique de Paris (IAP)

France

Nicolas Morisset

University of Geneva

Switzerland

Simon Rozier

Observatoire astronomique de Strasbourg

France

Manu Stalport

University of Geneva

Switzerland

Raphaël Mignon-Risse

Université de Paris

France

Michel Piat

Paris University

France

François Spite

Observatoire de Paris

France

Bizouard Marie Anne

Observatoire de la Cote d'Azur

France

Eva Wirström

Chalmers University of Technology

Sweden

Carine Babusiaux

IPAG

France

Boudewijn Roukema

Institute of Astronomy, Nicolaus Copernicus University

Poland

Giorgia Busso

Institute of Astronomy, University of Cambridge

United Kingdom

Paolo Tanga

Observatoire de la Côte d'Azur

France

Grigoris Maravelias

IAASARS-National Observatory of Athens, IA-Foundation for Research and Technology-Hellas

Greece

Olivier Lai

Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, laboratoire Lagrange

France

RAYMOND SEAN

CNRS (Laboratoire d'Astrophysique de Bordeaux)

France

Philippe Zarka

Observatoire de Paris - CNRS - PSL

France

Stéphane Paulin-Henriksson

CNRS

France

César Gattano

Astronomical Institute, University of Bern

Switzerland

Ana Acebron

Università degli Studi di Milano

Italy

Katia Ferrière

IRAP

France

stehle chantal

Observatoire de Paris / CNRS

France

Phil Short

The University of Edinburgh

United Kingdom

Jonathan Braine

University of Bordeaux

France

Vibor Jelic

Ruder Boskovic Institute

Croatia

Catherine Dougados

IPAG CNRS & Universite Grenoble Alpes

France

Eric Quirico

Université Grenoble Alpes

France

Marc Huertas-Company

IAC - Observatoire de Paris

France

Nicolas BILLOT

UNIGE

Switzerland

Beatriz Agís González

Instituto de Astrofísica de Andalucía

Spain

Carine Briand

Observatoire de Paris

France

Pasquier Noterdaeme

Institut d'Astrophysique de Paris

France

Paul Wiegert

The University of Western Ontario

Canada

Régis Courtin

Observatoire de Paris

France

Eric Emsellem

ESO

Germany

Frédéric Arenou

CNRS / Observatoire de Paris

France

Francoise Combes

Observatoire de Paris

France

Etienne Behar

Swedish Institute of Space Physics

Sweden

Robert Vincent

IMCCE Paris Observatory - IPSA

France

Benjamin Charnay

Observatoire de Paris

France

David Cornu

Observatoire de Paris - LERMA

France

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.
Become a Member
Summer Milky Way, Thoreau, NM. J. Lowenthal

Support Us

Help us to address climate change
from an astronomical perspective.
Donate Now