Short romanian-english translation

Hi, it's not a lyric (well, it may be) but i was written this, "Pe maine dragul meu ....! Numai bine!
I asked what it meant and was told that it was about greenhouse gasses, a joke i think?
Any help much appreciated, thanks.

LOL!

You were written a regular closing expression. I won't translate it word by word cause it won't make much sense in english, but I'll tell you what it means:

See you(talk to you) tomorrow, my darling. Wish you all the best.

So...yes, it's not about the greenhouse gasses

Very kind of you, thanks.