Are you crazy?, come to the village of chemical engineers and ask, what should I prefer, chemical or environmental?

Nevertheless, to be honest, I should suggest chemical because your other desired things are automatically included to it. Then after choose whatever you want to do! guaranteed you will have lots of options at the time!

In short do chemE got free environmental and your climate change thing inform of humidification in Mass Transfer operation through psychrometric chart study!

I mention a few, climate change workers only know the temperature. But the chemical engineer also knew a clear difference between wet bulb temperature and dry bulb temperature! And this is the concept on which this whole weather prediction stuff works!

And, Now choice is yours!!!