They live in warm tropical water throughout the globe.
I going to poke it with a stick!
Global Warming has an affect on all animals and plants. Global Warming? Global Warming is when the Earth gets warmer quicker every year. This effects the hammerhead's migration routes. In the Winter when the water stars to get colder, Hammerheads will migrate to warmer water.
Hammerhead Shark Migration
But when it gets warmer quicker, they have to migrate later than they do because then it is colder later.