Can you observe evolution taking place

Evolutions happens over thousands, if not hundreds of thousands of years. You can't see evolution taking place, but I suppose you could see evolution that has already taken place.

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.