Real firecrackers.

In next few weeks, it is going to be real time firecrackers somewhere over the Pacific Ocean skyline. US government decided to shoot down spy satellite, which anyway going to fall from orbit because of power failure. This spy satellite was launched on 2006 and it failed as soon as enters orbit. So this satellite's fuel tank is almost full and may cause severe damage when it hit the ground. But there is only 1 percent chance that this satellite hits populated area. Because our earth 75% covered with sea and 24% is waste land. So some experts are concerned with US plan, and this would leave some million piceces hanging in orbit(like debris cloud), which act as a barrier to other satellite and spacecraft. Most recently China shoot down a weather satellite and made a large debris cloud in space. Now it is US's turn.

I don't think this actions would speed up global warming.