The situation develops fairly predictably after that. More airships, all over the world. A long series of planned drops with care packages designed by hundreds and hundreds of helpful demons in Hell- Or rather, apsels in the Void. They come across various bad situations and unrest, and try to resolve them by giving everyone lots of food and heaters and entirely harmless supplies. They distribute greenhouse kits, to give people something to do. Some desperate refugees-cum-pirates hijack a few of the airships, and can be bribed to stop that before it really goes anywhere with basic living supplies. The governments of the world mostly fail to collapse, though certainly the political situation is due to change a lot.
Angels gradually stop the entire massive wildfire burning up the Amazon Rainforest and do their best to clear out the absurd amounts of ash in the air. Lots of it is too spread out by now, but climate models running on computers a dozen orders of magnitude more sophisticated than anything the 19th century can dream up say that the worst of it has been averted - it's still going to stay unreasonably cold for a while, but the giant megastorms that were due to hit in another couple of months and kill almost everyone will never happen.
Now, though, more and more communities and governments would really like answers as to where all this stuff is coming from.