Earth Summit topics among the “Four Element” categories
| Earth
|
Food, Soil, Seeds, Housing, GMO Crops, Composting, Carbon Sequestration |
| Wind
|
Air Pollution, Climate Change |
| Fire
|
Transition to Renewable Energy, Dealing with Nuclear Waste at San Onofre, Clean Transportation |
| Water
|
Water Management, Grey-water Systems, Rainwater Capture, Water Pollution, Ocean Health |
