Too many to name. Consider, for example, the ISS or the LHC (a real shame those utter fucking morons in the US gov’t killed the superconducting supercollider).
I mean, we came from banging rocks together to making those rocks think for us. Our entire modern world is so far divorced from ancient humanity it’s hard to list all the individual accomplishments. Recently though has been the electrical grid, global logistics chains and the internet. In these times of medical doomerism, it’s also important to remember that we banded together killed smallpox.
Giant collaborations analyzing data from many distributed sources. Examples: Pulsar Timing Arrays and Extremely Long Baseline Interferometry.
I’m still amazed we lifted cities by hand to rebuild them with sewer systems
COVID vaccine comes to mind
Vaccines and space
CFL creating a hole in the ozone
DDT killing bald eagles
Y2k
I was looking for positive things that have been accomplished in the sciences when people from across the world come together.
Sorry yes, I was just trying to shorthand. I meant the collective corrective effort to address these issues.