Medicare is a federally funded health insurance program for Americans over age 65 and people who have been deemed disabled. In 1972, people requiring dialysis became newly entitled to this health benefit.
Climate change is any significant long-term change in the expected patterns of average weather of a region (or the whole Earth) over a significant period of time. Climate change is about abnormal variations to the climate, and the effects of these variations on other parts of the Earth.
Climate change means more than just a change in temperature, but a change in global weather patterns which could affect precipitation averages and extremes, too. For example, one effect of global warming could be that the northern part of the Northern Hemisphere will likely warm up more than other parts of the globe.