Buoys are floating devices used in oceans and large bodies of water for navigation, data collection, and environmental monitoring. In the context of climate science, buoys play a crucial role in tracking ocean conditions, which are vital for understanding phenomena like the El Niño-Southern Oscillation (ENSO) and other climate oscillations. By providing real-time data on temperature, salinity, and currents, buoys help scientists predict climate patterns and assess their impacts on global weather systems.