Senior Research Fellow at the University of Exeter, working with Prof. Jim Haywood. You can view my CV here.

My research is currently mainly focused on understanding the potential risks and benefits of Sunlight Reflection Methods (SRM).

I have also done work on the polar amplification of warming (review and paper) and understanding past warm climates such as the Eocene (paper 1 and paper 2).

I co-host the Climate Intervention Virtual Symposia. If you want to present your SRM research, please get in touch.

I am also happy to discuss collaborations (academic, outreach, or otherwise), don’t hesitate to reach out.

Selected Publications

Henry, M., H. Hirasawa, J. Haywood, and P. Rasch : Marine Cloud Brightening to Cool the Arctic : an Earth System Model Comparison. Paper and summary.

Henry, M. and Duffey, A., 2025. Commentary:” Safeguarding the polar regions from dangerous geoengineering: a critical assessment of proposed concepts and future prospects”. Frontiers in Earth Science, 13, p.1709127. Paper

Henry, M., E. Bednarz, and J. Haywood : How Does the Latitude of Stratospheric Aerosol Injection Affect the Climate in UKESM1? Paper and 10-min presentation.

Jordan, G. and M. Henry : IMO2020 Regulations Accelerate Global Warming by up to 3 Years in UKESM1. Paper

Henry, M., J. Haywood, A. Jones, M. Dalvi, A. Wells, D. Visioni, E. Bednarz, D. MacMartin, W. Lee, M. Tye: Comparison of UKESM1 and CESM2 Simulations Using the Same Multi-Target Stratospheric Aerosol Injection Strategy. Paper, 15 min talk, Old 30 min talk.

P.C. Taylor, R.C. Boeke, L.N. Boisvert, N. Feldl, M. Henry, Y. Huang, P. Langen, W. Liu, F. Pithan, S. Sejas, I. Tan: Process Drivers, Inter-model Spread, and the Path Forward: a Review of Amplified Arctic Warming. Frontiers in Earth Science. Paper Carbon Brief guest post

Henry, M. and T.M. Merlis: Lapse rate changes dominate residual polar warming in solar radiation management experiments. Geophysical Research Letters, 2020. Paper and AOFD talk recording.

Others

“Solar Radiation Modification : Policy Briefing”. Royal Society. 2025. Member of the Working Group. Royal Society

Guardian letter defending the need for climate intervention research (“Climate research into cloud barriers or Arctic refreezing is worth funding”, not my choice of title). 2025. Letter.

“Comment modelise-t-on le voile solaire?”. Interview by Remi Noyon for his 420ppm substack.

“Sulfates : la baisse des emissions a accelere de 2 a 3 fois le rechauffement climatique”. Radio France Culture show on our IMO2020 paper. Recording.

“Guest post : Why does the Arctic warm faster than the rest of the planet?”. Carbon Brief