I think the 'bomb' event is a standard effect of having rebels on the island, isn't it? Sorta like random assassination attempts and worker strikes. Unless all of those are tied to pissing off one of the different factions too... come to think of it, worker strikes
are kind of a commie tactic, and Communists are right up there with Environmentalists in the "annoying to please factions" list.
But yeah, damn the Environmentalists some days. Mining is an awesome way to make some early-game money, and back in T3 logging was basically the only guaranteed industry. (Now we've got importing, so
every industry is possible, and I've seen at least 1 island where even logging was impractical...)
Oh, and my personal favourite? The silly hippies complain about high pollution, and they complain about a lack of garbage dumps to reduce said pollution.
However, your first garbage dump's completion is likely to be heralded by the Environmentalist leader hopping on the radio to cry over the loss of the grassy field upon which you built the dump, including "25 plant species, 12 types of reptiles, and one... cute... bunny." Oh, sorry dearie, I was under the impression you were threatening my regime because I didn't have enough pollution control, and I could've sworn you had a mission active for me to build a garbage dump.
Humanitarian Aid is pretty powerful when appeasing the communists and having people not die while waiting for the college to set-up and churn out enough for itself and generals to keep a good flow. (I tend to lose a lot of newbie generals around that time period...)
Pro Tip: You can keep Humanitarian Aid going as long as you please if you do not mind losing a few citizens every 7 or so years... (I've managed +200 population without health works...)
Wait... what are the requirements for Humanitarian Aid, again? I remember in T3 that you needed a diplo ministry, which was free if you had the Diplomatic trait but fairly expensive and mostly useless otherwise. Given that most of the foreign edicts are even bloody harder to get now (Ministry + college-educated minister + Foreign Office), I'd pretty much written Humanitarian Aid off as either useless, or at least prohibitively expensive compared to building a clinic.
Truth be told, I usually get a Clinic pretty quickly anyways; T4 seems to start you with more college-educated workers, so getting formal health care set up isn't nearly as expensive as the old foreign-expert-hidden-cost scam used to make it. Getting a Clinic is usually delayed only by laziness; stupid lazy builders have enough trouble setting up the buildings that make me money, to heck with the buildings that keep people from horribly dying from treatable maladies.