# Jonas Herby Back to [[Authors/@BjornLomborg/People/People|Lomborg People]] · [[Authors/@BjornLomborg/BjornLomborg-x-profile|@BjornLomborg]] · Topic: [[Topics/Climate Change Science and Policy Debate/Climate Change Science and Policy Debate|Climate Change Science and Policy Debate]] **Role:** Danish economist; analyses the costs of Danish climate and environmental policy ⚠️ (current affiliation not re-checked) - Estimated the cost per ton of CO₂ of Danish household source-sorting of waste in an analysis published Jun 5, 2025 (on 1spand.nu ⚠️ exact URL not recorded): about 3,843 DKK/t (≈ €515) excluding households' time, and about 37,153 DKK/t (≈ €5,000) including it. - Used in [[Authors/@BjornLomborg/Post Analyses/Post Analysis - BjornLomborg on Recycling Costs and Denmark (2026-10-07)|Recycling Costs and Denmark]] to show that household sorting is also costly per ton, even though Lomborg's €4,000 figure comes from a Danish EPA study of mechanical post-sorting.