If you're not seeing persistent chemtrails over the population centers, the may be using non-persistent chemtrails. That's that they're doing here. This way, few people ever see them, unless they stay outside and watch.

There are different types of chemtrails and I believe they have different purposes: Depopulation, soil-aluminization, and HAARP signal propagation (weather control and earthquake induction) are among the top three.

Certain chemtrail types that change the soil are sprayed over agricultural areas. Other chemtrail types that contaminate water sources are sprayed over aquifers and surface drinking-water sources.

Other chemtrail types are sprayed over population centers (usually non-persistent and/or high altitude so they can't be seen).

We are living in very dangerous times, unlike any time in history.

I always suggest that people listen to William Cooper if they want to grasp the way the world really works politically so as to help understand how such large operations - like chemtrails - can be internationally coordinated.

http://orbisvitae.com/mc/Mystery-Babylon-Series/

Hang in there and please keep exposing this crime against humanity.