Climate change is not a well defined term in some way that AGI is not.
What's climate change? Is 1.5C climate change? Is 1.0C climate change? Is ozone depletion part of climate change because it eventually changes the climate, or is it a separate issue?
Ultimately climate change means "a climate that changes", and AGI means "an artificial intellience with general capabilities". From there, many scientists have defined the terms in various slightly-different ways for various reasons.
Just because these scientists make you anxious doesn't mean they're not scientists.
What's climate change? Is 1.5C climate change? Is 1.0C climate change? Is ozone depletion part of climate change because it eventually changes the climate, or is it a separate issue?
Ultimately climate change means "a climate that changes", and AGI means "an artificial intellience with general capabilities". From there, many scientists have defined the terms in various slightly-different ways for various reasons.
Just because these scientists make you anxious doesn't mean they're not scientists.