Innovative approaches converge on mitigating climate change and environmental risks through biotechnology. Urban heatwave relief strategies emphasize 30% tree cover as a natural cooling solution. Engineered gut bacteria detoxify mercury from fish-rich diets, offering protection from mercury toxicity. Agricultural sustainability benefits from eco-friendly farming practices shown to boost biodiversity and yields. Researchers developed a sun-powered 3D-printed sponge for seawater desalination, promising freshwater access without energy-intensive processes.