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

Adolf Witt

University of Toledo

United States of America

Larissa Antunes Amaral

Universidad de Valparaíso

Chile

Luke Maud

Eso

Germany

Karleyne Silva

NaN

Chile

Bilal Ramzan

National Central University Taiwan

Taiwan

Giuseppe D'Ago

Pontificia Universidad Católica de Chile

Chile

Ryan Hickox

Dartmouth College

United States of America

Marc Postman

Space Telescope Science Institute

United States of America

Atreyee Sinha

LUPM, CNRS

France

Heidy Mayerly Lara

Julius Maximilians Universitat de Wurzburgo

Germany

Eugenio Carretta

INAF - OAS Bologna

Italy

Brian Merino

San Francisco State Univeristy

United States of America

Robert Thacker

Saint Mary's University

Canada

Bia Boccardi

MPIfR, Bonn

Germany

Alice Jacques

NSF's NOIRLab

United States of America

Jan Orkisz

Chalmers University of Technology

Suriname

John Swinbank

ASTRON

Netherlands

Vikash Singh

INAF OACT

Italy

Mithi de los Reyes

Caltech

United States of America

Jacob Hamer

Johns Hopkins University

United States of America

Adam Burgasser

University of California San Diego

United States of America

Felicia Krauss

Penn State University

United States of America

Bill Mathews

University of California, Santa Cruz

United States of America

Patricio Rojo

Universidad de Chile

Chile

Miriam Gudiño

Instituto de Astronomía, UNAM

Mexico

Thiago Bueno Dalpiaz

Universidade Federal do Rio de Janeiro (UFRJ)

Brazil

Vahe Petrosian

Stanford University

United States of America

Matthias Samland

Stockholm University

Sweden

Eric Abreu

Observatório do Valongo - UFRJ

Brazil

Crystal Gnilka

IPAC/Caltech

United States of America

Moorits Mihkel Muru

Tartu Observatory

Estonia

Samantha Lawler

Campion College, University of Regina

Canada

LUCAS VICTOR CONCEICAO

Observatório do Valongo (UFRJ)

Brazil

Amit Kahana

Weizmann Institute of Science

Israel

Brian Chaboyer

Dartmouth College

United States of America

Amanda Quirk

UC Santa Cruz

United States of America

Adam Gonzalez

Saint Mary's University

Canada

Peter Ferguson

Texas A&M University

United States of America

Juan Garcia-Bellido

Universidad Autonoma de Madrid

Spain

Emma Beasor

NOIRLab

United States of America

Júlia Alves

Valongo Observatory (OV - Federal University of Rio de Janeiro)

Brazil

Patricia Cruz

Centro de Astrobiologia

Spain

Steven Furlanetto

University of California Los Angeles

United States of America

Violeta González Pérez

Universidad Autónoma de Madrid

Spain

Ahmet Talat Saygac

Istanbul University Faculty of Science Dept. for Astronomy & Space Sciences

Turkey

Aileen O'Donoghue

St. Lawrence University

United States of America

David Williams

University of California, Santa Cruz

United States of America

Isabel Rebollido

Space Telescope Science Institute

United States of America

Ana Catarina Macedo

Federal University of Rio de Janeiro

Brazil

Zafar Rustamkulov

Johns Hopkins University

United States of America

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.