I'm pretty sure that him being an ex-president is a better known fact. But still, him being the first and only criminal ex-president is pretty remarkable. Keep it in the first sentence!
That's not necessarily true. General-purpose 3rd party models (chatgpt, llama3-70b, etc) perform surprisingly good in very specific tasks. While training or finetuning your specialized model should indeed give you better results, the crazy amount of computational resources and specialized manpower needed to accomplish it makes it unfeasible and unpractical in many applications. If you can get away with an occational "as an AI model...", you are better off using existing models.
You might have a point with this one. In fact, there are a ton of private companies already successfully running public transport systems. I think most people (myself included) just wouldn't trust a company like Uber for this kind of job. I guess in the meantime we can be happy for (potentially) more bus routes but still weary.
You are looking at the wrong continent to disappear for the effect to be noticeable
https://www.statista.com/statistics/205966/world-carbon-dioxide-emissions-by-region/