Dear Maureen,
Pull up a pew so we can talk climate change. Last month, you said, “We have cooled and warmed, cooled and warmed over millions of years.” But you were waiting for proof that humans have caused the current warming.
I’m glad you raised this, because many people don’t understand how modern climate weirdness is different from the age-old shifts. We know Earth was 6°C cooler during the last ice age. At that stage, the sea level was 120m lower and a land bridge connected Asia
