Also there is very interesting and strange event such as "Depopulation of cockroaches the ex-USSR countries".
[link to en.wikipedia.org]

In past there were lots of them. No matter how much poison you put everywhere - they always come back later. They were thought as the most survival insects which will live even after nuclear war. But after year 2000 they just disappeared. Now there're no cockroaches even in dirtiest houses. It's good but makes you wonder what happened? So what happend after year 2000? Mobile phones became widespread. Cockroaches can't stand their waves.