  Climate change presents an existential threat to human societies and the
Earth's ecosystems more generally. Mitigation strategies naturally require
solving a wide range of challenging problems in science, engineering, and
economics. In this context, rapidly developing quantum technologies in
computing, sensing, and communication could become useful tools to diagnose and
help mitigate the effects of climate change. However, the intersection between
climate and quantum sciences remains largely unexplored. This preliminary
report aims to identify potential high-impact use-cases of quantum technologies
for climate change with a focus on four main areas: simulating physical
systems, combinatorial optimization, sensing, and energy efficiency. We hope
this report provides a useful resource towards connecting the climate and
quantum science communities, and to this end we identify relevant research
questions and next steps.
