Huh? Regardless of how different the climates are due to climate change you can still make measurements and then compare them with other measurements. Example "the climate in northern India over 2024 was measured in terms of temperature, pressure and humidity ranges. We found parts of northeast Australia to have significant overlap with their temperature, pressure and humidity ranges over the same period of time." Literally has nothing to do with how climate has changed it's just comparing two climates with each other.