In the late 2000s there was a push by a lot of businesses to not print emails and people use to add a ‘Please consider this environment before printing this email.’
Considering how bad LLMs/‘ai’ are with power consumption and water usage a new useless tag email footer should be made.
I mean, depends on the email. If you spend more time answering yourself than the AI would, you almost certainly emit more green house gasses, used more fresh water and electricity, and burned more calories. Depending on the email, you might have also decreased net happiness generally.
Do we care about the environment or not? Please, oppose datacenters in desserts and stop farming alphalpha where water supplies are low. But your friend using AI to answer an email that could have been a google search is not the problem.