This week's Science has a special collection of stories about climate change. The evidence is getting better for a 1–3°C (2–6°F) increase in global average temperatures, with concomitant sea-level rises and significant shifts in local climates:
Recent research papers in Science and elsewhere are pointing to a major acceleration in the loss of mass from the world's great ice sheets. That means that the sensitivity of these giant storehouses of water to climate warming may be far greater than expected—with potentially dire sea level implications during the next several centuries.
Since the current administration doesn't believe in evidence, the new findings aren't likely to spur change here in the U.S. Fortunately, we will have a new administration in less than 1,033 days. One hopes Miami will still be dry by then.