Hello! I can't write a lot right now, as I am studying for an exam on this very topic at the moment. I can say that the environment is definitely of concern in this Small Island State. There are many green initiatives. Malta has been an EU member since 2004 and therefore has implemented the strong EU environmental directives. Briefly -
Solid waste management facilities are new, state-of-the-art, and use methane to generate energy for at least one of the facilities. Garbage is collected curbside 4 days/wk. Plastic/paper mixed recycling is picked up 2x/wk, also outside the front door. (Glass less often. There are also drop-off points in villages and some bottle deposits at stores.) Compostible items are now being picked up on a trial basis in some areas.
Coming from a less-well-served public transit area in the US, we don't have a car here and have been using the buses for months and find them very nice, although not without scheduling quirks. There are way too many cars for the size of the roads. We did make a choice to live near the bus route.
Renewables like solar have been encouraged and are in high use for water heating in particular - there were subsidies given - not sure if they still are. Larger-scale wind farms were not able to be implemented due to need to place in deep water and also wildlife habitat conflicts. The power company just converted one of its plants to a two-phase system, and to run on gas rather than diesel. (I think I'm explaining that correctly.)
I am not sure about the extent of public awareness campaigns, because we don't watch local TV - it's only in Maltese, and it is quite hard to learn.
The compost information was in one of the (English language) newspapers, and the Minister of the Environment does a periodic column as well to keep people apprised of efforts and issues.
There seems to be a good level of energy efficiency awareness such as low-wattage light bulb use, but weatherstripping is nearly unheard of and there are some building codes (like open grates in exterior walls) that don't entirely make sense to me as someone who comes from a climate that has hot and cold weather extremes (Upper Midwest US).
It is hard to tell what percentage of people here take these issues on board. There is certainly an issue with litter, although this is also a big tourist destination, so it's unclear who's to blame. I appreciate that the garbage and recycling are so convenient and I like the public transit.
I could probably connect you with more resources if you would like them.