David Shemano: " ... on what basis do you believe I (or any other
non-climate scientist) can conclude that climate change is occurring, that
CO2 emissions contribute to global warming, that geoengineering solutions
are not feasible, etc.?"
Because scientists aren't seeking to uphold a political or economic position
in providing their considered view.
It's a matter of trust. I would not trust a politician (of any position) to
pass on an objective viewpoint, but I would trust an independent scientific
expert. When you combine thousands of experts and they arrive at a
consensual view that says the planet is heating up and that we are mostly to
blame, the sensible response is to believe what they say.
Simon Ward
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