As CO2 emissions from data centers begin to overtake those of aviation, it’s time for software engineers to take responsibility for the carbon impact of the code we ship.

At the Sustainability Team at HTI, we’re exploring practical ways to assess and reduce the CO2 impact of digital workloads, and WebAssembly can play a key role realizing this.

In this technical talk we will compare traditional workloads with different WASM based tech stacks, such as wasmCloud and SpacetimeDB.

We’ll explore some unexpected aspects of green coding, some technical deep dives on the implications of architecture choices, and we show how otherwise boring projects become interesting when challenging ourselves to minimize CO2 impact