The weather mystery

1. Climate change

1.1. drought

1.2. Floods

1.3. Collaption of emipre

2. Political instability

2.1. Irrigation

2.2. Water shortage

2.3. Fighting in darfour

3. Global warming

3.1. Noisy phenomenon

3.2. Air contain water vapour

3.3. Result in rainfalls

4. The future

4.1. Continuity of climate change

4.2. Water management technique