Slides from the Michael Mann lecture at Cabot Institute in Bristol

Thank you for sharing that with us Anthony. Reading between the slides, it appears Mann is pulling the same old tricks with graphs and charts that charlatans use. For instance the CO2ppm graph, we all know CO2 concentration has gone up and down in the past, so why not start the time axis from a few thousand years ago and the CO2 axis at zero? Because it would not look so dramatically misleading! It does not say a lot for his research if he is showing copies of the Washington Post. Why did he not show his research data that proves AGW?
To me it looks same,same,same; cherry picked data, cherry picked newspaper articles (unbelievable!), graphs and charts to exaggerate and mislead and a finale of nauseating sentimentality.

Cream Bourbon.
I do not have any preconceived ideas, on the contrary, initially, when the AGW surfaced, I was very concerned and thought something needed to be done. The one thing that changed my mind was when wild preposterous claims were made, such as the Earth could become like the planet Venus, because as I accept, if temperatures rise then basic CO2 containing compounds, eg calcium carbonate, calcium bicarbonate and as temperatures rise so does insolubility of CO2 in the oceans and seas (this is despite the fact that we are being told that ocean acidification due to carbonic acid is increasing).
Venus has a surface temperature of 860 F, an atmosphere which weighs 93 times our atmosphere, there is nowhere near enough CO2 on Earth, trapped or otherwise to be able to produce an atmospheric density of this nature.
Being told sea levels will rise when the Arctic ice melts, of course it won’t, ice is 90% of the density of water, therefore if it all melts, there is no nett rise of sea level. I accept that ice on land will raise sea level, but the Antarctic ice extent is actually increasing.
After these very basic scientific errors, I considered the following:
E-mails, the contents of which will not be divulged, raw data, the same.
Calling us d*ni*rs to compare us with N*zis, who should be imprisoned.
The science is settled (no global temperature rise in almost 18 years).
Said heat disappearing into the ocean depths, which is magical as opposed to the LAWS of Thermodynamics (not computer models).
Electric cars which are clean, not when the electricity that charges them is mainly from fossil fuels.
Building windmills which we are told will provide us with all the clean power we need, not when the wind doesn’t blow they don’t! Most provide us with 25% of quoted output, no mention is made of the roads that need to be built to build and service them together with the copper for the cables and the 800 cubic metres of concrete needed to prevent them from toppling over. How much CO2 does building the things produce?
Reducing CO2 here in UK by switching one of our biggest power stations to burning renewable wood instead of coal. The wood absorbs CO2 and the emits it again when burned, so is “Carbon Neutral” . Fantastic! Except what about the CO2 produced to cut the trees down, pulverise them into a powder, dry the powder, turn into pellets and then ship across the Atlantic in cargo ships? It does not add up.
I was told in the early nineties, snow in winter in the UK would be a thing of the past, it isn’t. I would be able to grow vines and produce my own wine, I can’t and Southern Spain (from where I returned yesterday), would be an un-inhabitable desert, with climate refugees heading up here to NE England (it isn’t and they haven’t)
Finally the graph kindly supplied by dbstealey, shows that CO2 concentrations in the past 20 times higher than now have not led to Armageddon for the planet.
These reasons, together with the measures that will decimate our economies are why I am a disbeli*ver in AGW being a threat to the planet.
Your analogy of Polonium is an interesting one, if I was to follow the logic of your argument, I would point out that I have many grams of CO2 in my body, this regulates my breathing. Too much, my breathing rate goes up, too little and my breathing rate falls. The actual mechanism you are talking about is LD50. All drugs and toxins have a calculation of LD50, this means that at a given dose, 50% of those exposed to it will die. The idea of this scale is to be able to judge the relative toxicity of substances. Polonium 210 is one of the most toxic substances known to man at LD50 = 0.00000001g/kg of body weight.