From warmer ocean temperatures to longer and more intense droughts and heat waves, climate change is affecting our entire planet. Scientists at NOAA have long worked to track, understand and predict how climate change is progressing and impacting ecosystems, communities and economies. In honor of Earth Day, take a look at five ways scientists, including researchers funded by CPO's Regional Integreated Sciences and Assessments (RISA) program, are studying this far-reaching global trend.