Another ‘Super El Niño’ is brewing. Scientists are looking at a controversial solution to squash them

A brewing "Super El Niño," amplified by climate change, could drive far more extreme and deadly weather worldwide.
Researchers modeled "marine cloud brightening" — spraying particles to make ocean clouds reflect sunlight (inspired by Australia's fire-smoke cooling effect) — and found it might cut El Niño impacts by roughly 40% if used early.
It's a preliminary proof of concept: the technology isn't ready and there are major technical, ethical and geopolitical risks and trade-offs to resolve.