Because nitrous oxide [released by nitrate-fertilised soil] is 296 times stronger than CO₂ at global warming and methane [cow farts] is about 26 times as potent as CO₂, the combined greenhouse effect of our livestock worldwide is greater than the sum total of all the cars, trains, busses, trucks, ships, airplanes and jets.

One of the essential differences between the liberal and conservative worldview is that the liberals believe in rationality, whereas conservative believe that human events are ordered by forces that are beyond the ability of our rational mind to understand or control.

The primary opportunity is to use a model or paradigm for describing ADD that's not disease-based and doesn't imply brain damage or what many children interpret as some type of retardation...a person must have hope; this model restores self-esteem, thus empowering individuals to change.

Ask how you’d live your life differently if you knew you were going to die soon, then ask yourself who those people you admire are and why you admire them, and then ask yourself what was the most fun time in your life. The answers to these questions, when seen, heard, and felt, provide us with an open doorway into our mission, our destiny, our purpose.

A species may eat a particular bacterium, phytoplankton, smaller fish, or plant in an area. Lacking a predator, these species/populations will overgrow and alter the area's biology, overwhelming and driving to extinction dozens or hundreds or thousands of other local species.

Many people I've met believe that plants are made up of soil-that the tree outside your house, for example, is mostly made from the soil in which it grew. That's a common mistake. That tree is mostly made up of one of the gases in our air (carbon dioxide) and water (hydrogen and oxygen). Trees are solidified air and sunlight.

The most important things in life are intangible.