| 1 | As surface waters warm up through the summer, they become very buoyant. | |
| 2 | Air pollution contributes to water pollution and increases acidity in oceans and lakes. | |
| 3 | Consequently, concentrations of salts and minerals began to rise in the shrinking body of water. | |
| 4 | Heavily acidic conditions also prompt the leaching of toxic metals into nearby bodies of water. | |
| 5 | The images combine infrared and visible light to increase the contrast between water and land. |