California could lose votes in the electoral college and suffer economic setbacks if President Trump’s immigration crackdown deters people from moving to the state.

I was frustrated with seeing methods being used to estimate wolf numbers that were very indirect and ... were unlikely to ...

Biodiversity continued to decrease in most of the areas we studied, irrespective of population increase or decrease. Only ...

Explore the reasons behind the slowing growth of Washington's population and its impact on the state's future.