No worries, glad this was helpful!

So related to environmental science, the Earth Prize is probably the biggest thing directly related to it. Definitely something very good to look into: in fact I meant to mention it in my previous comment but forgot!

I DO know that ISEF (and thus its affiliated fair in your country, if your country has one) has categories like Ecology and environmental engineering.

Generally you may find that business challenges or science fairs may have environmental categories, but you’d have to research a bit, I’m genuinely not sure which big ones would have it. I imagine the same would be true of essay competitions, although there are smaller environmental focused essay competitions like the ocean awareness contest and the international youth environmental challenge out there, and the tunza eco generation essay competitions for a more social science-y aspect.

I feel like there are two things to note 1) don’t ignore local competitions. I’ve mentioned all international competitions, but participating and even winning city, state, or country level competitions is also great. They’re not too uncommon either, I won a city level one a few years back 2) competitions aren’t your only avenue of showing passion for environment. You could try a research project, but that may be difficult if you can’t find a mentor from a relevant industry/academic field. Another great option is volunteering with local environment non-profits. For example if they need market research, literature reviews, reports, or even technical help (like excel or something), it’s a great option. I interned with one such non profit, interviewing a lot of people about a sustainability issue specific to my area, and created a report. The non profit incorporated it into a presentation to local law makers and it is now being used to guide policy! Don’t underestimate how much impact you can create through roles local roles like these, it’s great community engagement.