Avoid, indulge, ingest, refrain...humans are at fault for all of earths normal cyclings, or, again, maybe not.
Source
COLOMBO, Sri Lanka - The Indian Ocean tsunami's devastating waves brought more than death to this island nation — they upset some of Sri Lanka's key ecosystems, the U.N. environmental agency warned Friday.
Nearly six months after the disaster that killed more than 31,000 people in Sri Lanka, studies have found that the tsunami waves have pushed seeds of so-called alien invasive species from their coasts farther inland on the tropical island, the United Nations Environment Program said.
Source