S.F. Chronicle, 7-28-09:
Mexican drug traffickers have expanded their marijuana-growing operations in California parks as state and local governments have tightened spending and slashed jobs and services.
Law enforcement officials say the traffickers, taking advantage of the fact that there are fewer sheriff's deputies and rangers monitoring parks, are cultivating more pot than ever before. This year's multibillion-dollar crop is on pace to be the largest in history, said state officials.
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The growers are so brazen that they often return to replant crops in the same plots that were recently raided, authorities said, and they don't care about the extensive environmental damage they cause by clear-cutting forests, damming up creeks and polluting public land with pesticides and trash.
Legalization is not the solution, (Michael Johnson, the statewide commander of the CAMP task force) said, given that most of the pot is being grown illegally on public parkland by foreign citizens who cannot be taxed.
LINK:
http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2009/07/28/MN6P18K1FV.DTL-----------------------
The last sentence hit me: If marijuana were to be legalized, wouldn't that decrease demand for the illegally grown kind? At least the environment wouldn't take such a hit.