People have been getting taller because of better healthcare, sanitation, and nutrition.
Human Height - Our World in Data
Climate Change Indicators: U.S. and Global Precipitation
Canadians still getting taller, but not as fast as others
Human Height Changes Over the Last 100 Years in Different Countries
Climate Change Indicators: Atmospheric Concentrations of Greenhouse Gases
PDF) A century of trends in adult human height
Climate Change Indicators: Sea Level
How have we changed since our species first appeared? - The Australian Museum
Human height - Wikipedia
Make America Tall Again? Height Stagnation in the 20th Century - Priceonomics
How Human Height Has Changed Over Time — And What Might Be Behind It
Mapped: What Did the World Look Like in the Last Ice Age?