influencing the weather

Yes, the weather can be influenced by humans.

Before the Olympic Games at Beijing scientists were able to prevent rain at the main events by injecting chemicals in clouds and have them rain before the event and/or at another place.

This time they were motivated by the lack of rain in Peking.
At a temperature of minus 2 it snowed half a day.

All I want to ask is to lower the temperature here... a lot!
It's raining a lot at the moment and it would make a marvelous pile of snow for children to play in.

Come on... it's almost peanuts, it seems.