Projected Impacts to Earth

What are the physical impacts to Earth projected over the next few decades through 2100?
Skeptic Claim to Debunk: The impacts of rising temperatures, extreme weather, ice melt, and sea level rise will are not likely until beyond 2100.
Core Science Concepts Needed to Understand the Argument:
Projected impacts for different carbon emission scenarios (global mean temperature increase, land and sea ice melt, sea level rise, changes to the hydrologic cycle and extreme weather events), changes to ocean currents.