Apparently, if you want to avoid "chart crime" when you chart temperatures, then it's deceptive if you don't start at absolute zero.

When was the temperature on Earth at absolute zero?

My point exactly.

In a chart of world gross domestic product for the last 12 months, when was it at zero?

In a chart of ocean salinity, when was it at absolute zero?

Is it inherently deceptive to use a y-axis that doesn't begin at zero?