Another is cost. It costs Orca somewhere between $600-800 to sequester one tonne of carbon dioxide, and the firm sells offset packages online for around $1,200 per tonne. The company thinks it can cut costs ten-fold through economies of scale. But there appears to be no shortage of customers willing to pay the current, elevated price. Even as Orca’s fans revved up, roughly two-thirds of its lifetime offering of carbon removals had already been sold. Clients include corporations seeking to offset a portion of their emissions, such as Microsoft, Swiss Re (and The Economist), as well as over 8,000 private individuals.