Truth, science and climate change
Pilate: “What is truth?”; Lewis Carroll: “What I tell you three times is true”. Last time, I wrote about something which is scientifically uncertain, the role of human activities in the Queensland floods. This raises the question of truth — scientific truth — for example, whether it can be truthfully said that our activities are changing the climate of the Earth. Nowadays, many have a sceptical view of what scientists say, such as on the consensus among climate scientists that emissions of carbon dioxide and other “greenhouse” gases are resulting in global warming. So what do scientists say...