Eric Walker added a number of topics and a number of links to The environment, the Earth's ecosystem, ecology and environmentalism, and added The environment, the Earth's ecosystem, ecology and environmentalism to Nature, Science, engineering, mathematics and the humanities and "Earth" (deleted)
Eric Walker added a number of topics and a number of links to Citizenship, migration, emigration, immigration and refugees, and added Citizenship, migration, emigration, immigration and refugees to Society
Eric Walker added 'Bees, not refugees': the environmentalist roots of anti-immigrant bigotry | Environment | The Guardian to Immigration and the environment, and added Immigration and the environment to Citizenship, migration, emigration, immigration and refugees and The environment, the Earth's ecosystem, ecology and environmentalism