Culture, Religion & Environment...

Frankly, I think this mindset comes from the separatists. Their web-soldiers are always trying to come up with propaganda that could cause the Hindu majority to disunite, just like the East India Company did...'no-one says anything to goat halali on Eid, only complains about Jallikattu'....or 'no-one complained about Dubai/Sydney/US fireworks during New Year's and everyone complains about Diwali fireworks'.
Firstly, what's environment-friendly is so, in every case. Do not support any other country/religious group's fireworks either, as they are all bad for the environment.
What's humane, is so in every case, just the same...Be a vegan. Or at least a vegetarian… It's animal-friendly and is better for the environment, once again.
It hurts the sentiments of the touchy Hindus, when only Hindu religious customs are targeted.
But then again, do you really think fireworks are a traditional thing? Like Lord Rama was welcomed in Ayodhya with fireworks and Chinese lights adorning each house? Or if our forefathers could see how much smog covers the length and breadth of our cities, after each Holika Dahan/Lohri, would they have come up with such customs in the first place? Our nation is that of science, astronomy, maths, Ayurveda. All reason. No superstitions.
People burnt their old belongings come Spring to welcome the new season, new life, and let go of the old and spoilt. But is it possible they would have continued to do so even when they realized that those same things they didn’t need anymore, could be of use to someone else? So, why not gift/give/donate?
While it's important to make an effort of not hurting anyone...it is also important to be logical.