Eric Walker added a number of topics and a number of links to Climate change, and added Climate change to Climate and The environment, the Earth's ecosystem, ecology and environmentalism

Eric Walker added a number of links to Geoengineering and climate change, and added Geoengineering and climate change to Proposals for addressing climate change

Eric Walker added Geoengineering and climate change to Proposals for addressing climate change, and added Proposals for addressing climate change to Climate change