In addition to thinking of the economy as an ecosystem, libertarians should keep a few other things in mind when talking with environmentalists. The libertarian argument is that the best means to this end are markets and property rights, not big government. While environmentalists are suspicious of markets, they are also suspicious of big government. The hard part is to convince environmentalists that markets will do any better. The answer lies in a basic understanding of environmental issues.
Every environmental problem consists of a market resource that threatens a non-market resource.
The conclusion that environmentalists erroneously reach is that markets caused the problem. The reality, of course, is that non-markets caused the problem. The solution is to create markets for environmental goods. This isn't always possible, but it is possible more often than not. A second point is that environmentalists often confuse symptoms with problems.