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Lawyer versus climate scientist

Yesterday the AAAS Meeting saw the re-enactment of a scene John Grisham would be proud of. Ken Alex of the State of California Attorney General Office cross-examined climate scientist Myles Allen of Oxford University, UK, in a mock trial to try and discredit Allen’s work. The aim was to show what might happen if someone decided to sue a coal company or power station for harm caused by climate change.

Allen was on the stand because he has researched the attribution of phenomena such as the floods that hit Oxford in 2000 to climate change. In that case he and colleagues used a twin ensemble approach to show that climate change had doubled the risk of flooding.

“Climate science has never really been subjected to the kind of scrutiny that it would be if it ever came to court,” said Allen. “I’m not even pretending [my research] is trial-ready at this stage.”

While many scientists say its naïve to blame climate change for an individual weather event, Allen reckons that’s like a banker saying that it’s naïve to blame poor risk management for a catastrophic loss. “It’s just plain wrong,” he said. “If you do something that increases the risk of an event you can be blamed for it occurring.”

The experience provided an insight into how the uncertainty levels inherent to climate science could appear to a jury. Alex explained how he’d question all the assumptions used in the climate models Allen employed in his research and try to attack them as a house of cards.

“What does this mean for scientists?” asked Alex. “Your distaste for lawyers will increase. Your efforts are subject to attack and distortion.”

  • If you’d like to donate time from your personal computer to Allen’s research, which uses distributed computing, head to http://attribution.cpdn.org.