Have a look at https://www.vero.co/
I worked there for more than 2 years, I can assure you they have absolutly no intention to use your data.
+ there is no ads.
they gonna start charge new users after 1M users
- degradation of biodiversity, for humans, animals, and flora (climate change, pollution, over-production, you name it)
- nuclear damages (power plants, bomb, wastes)
- natural causes (meteorites, earthquakes, volcanos, solar flares)
2. analyse the roots of those (examples)
- technical limitations
- economically not sustanable
- pursuit of profit
- natural but avoidable
- natural and inevitable
Do a maximum of research for those points, and pick a cause that motivates you the most.
I, as a developper would personally aim to protect the internet, to have a free and truthful network to share knowledge.
With knowledge and science we can aim to have a global awareness of our impact on humankind's future.
I'm striving for a ressourced based economy, and leave that capitalistic aberration that the Gross domestic product (GDP) is coming from the amout of money spent, which means the more you consume (food, equipment, energy, health care, ...) the higher the GDP will be
