I was reading about the ongoing climate change debate in Australia, and a name from my past came up: Alan Finkel. I used to do contract programming for his company, Axon Instruments (all the neuroscientists out there know that name — it’s pretty much the premier company for making essential neurophysiology gadgets). I had to look up what Finkel has been doing in the last 20 years, since I last worked with him (I was one of the people working on his foray into cellular imaging, of which he says “we didn’t make a successful play in the market”, which is true).
Anyway, he was caught explaining climate change to that idiot, Malcolm Roberts. It’s an excellent explanation.
Across all the countries of the planet we’ve been burning fossil fuels for a rapid rate. It’s clear that by doing that we are emitting ever-increasing carbon dioxide into the atmosphere. The natural systems can’t absorb that. There’s a clear hypothesis, then there’s clear evidence. The thing that I find most compelling, senator, is that when you have a combination of a hypothesis and evidence.
When it comes to carbon dioxide it’s clear what would be driving increases in carbon dioxide, then you go out and measure it. Carbon dioxide goes up every year. Last year carbon dioxide went up 3.05 ppm which is more than any other time.
So the carbon dioxide is going up. Does that create warming? The theory is that carbon dioxide does trap heat, so ultraviolet light comes through the atmosphere without interruption, or almost without interruption, hits the ground, warms the ground and you get an infrared radiation from the ground which is then to some extent trapped by the carbon dioxide.
That theory goes back to 1896, Swedish physical chemist Svante Arrhenius did the initial work on that. He subsequently got a Nobel prize for other work and he identified that back in 1896 that carbon dioxide in the atmosphere, for basic physical reasons will trap heat.
So you’ve got the carbon dioxide, you’ve got the physics that says carbon dioxide would trap heat coming off the ground being radiated from the surface and from the water as well.
Do you have the evidence? Yes!
The temperature is going up and up and up. It was just yesterday that NASA declared that the last 12 months, yet again have been the hottest on record. So in both cases carbon dioxide is going up and it’s trapping heat, you’ve got evidence and theory. The second case is that that trapped heat will lead to an increase in temperature, you’ve got the theory and the evidence. That’s steps one and two.
The third step is the impact. The temperatures going up, what will that do to climate? That’s where it gets very, very difficult now you’re into the world of modelling.
I’m impressed. When I worked with him, he was sharp, talked very fast, and was incredibly focused and enthusiastic. It looks like he still is.