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What does HA stand for?

HA stands for Heidelberg Appeal

This definition appears somewhat frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

See other definitions of HA

Other Resources:
We have 65 other meanings of HA in our Acronym Attic

Samples in periodicals archive:

For example, there is the 1992 Heidelberg Appeal, signed by nearly 4000 scientists, including 70 Nobel Prize winners, which disagrees that there is scientifically reliable evidence for any warming trends or that human activity would be responsible for such.