Uneven warming by the sun I believe
Answer:
Global dimming is the reduction in the amount of global direct irradiance at the Earth's surface that has been observed since systematic measurements began in the 1950s. The effect varies by location, but worldwide it has been estimated to be of the order of a 4–20% reduction.
Explanation:
Last December 29, 2007 Bin Laden had an audio announcement that called all Muslims attention. This audio of Bin Laden asked for support of the Al Qaida. He justified all the actions as a jihad group. He also warned Sunni Arabs who are against the Al Qaida.
