Visualising the human cost of climate inaction
4 Billion Dead is a public information project that translates climate science into a human scale.
Based on peer-reviewed research, it highlights the widely cited risk that up to four billion people could die this century if global heating continues unchecked.
Numbers alone are easy to ignore. Faces are not.
This campaign invites people to take part in a simple, visible act of witnessing.
How to Take Part
Download the 4 Billion Dead placard here
Print the artwork provided.Or simply write 4 Billion Dead on a piece of card or paper.
Stand somewhere that matters
This could be a local landmark, a workplace, a public building, or any place that represents authority, community, or everyday life.Take a photograph
A clear image of you holding the placard is enough. No performance required.Upload your photo
Submitted images are added to the 4 Billion Dead gallery on this site, forming a growing visual record of people refusing to look away.
Why This Matters
Climate breakdown is often discussed in abstract terms: degrees, targets, timelines.
But the consequences are human, uneven, and already unfolding.
This project does not ask for belief, loyalty, or ideology.
It asks for attention.
Each image is a reminder that behind every projection and every dataset are lives at risk — real people, in real places, right now.
Upload Your Photos Here
