Bank of America. Theyâre among the 5 largest credit card companies on this list. 1  Rewards are a mixed bag. 2  Some of their cards use WorldPoints and as you can read about here, theyâre redemption value can be low.
All of that is being dumped into the Gulf of Mexico! The dead zone in the Gulf of Mexico has grown bigger over the years and is a dramatic case of what can happen. Unfortunately, according to many scientists, dead zones are becoming more common in the coastal waters of the United States.
So when billions of gallons pours down Texas rivers and into the Gulf, it smothers the salt water beneath, blocking it from the oxygen in the air above. Then a dead zone--also called hypoxia--begins to form, and it stays in place until late summer storms bring waves to mix the water.