There have also been other groups that have caused similar damage as the ELF, with in 2001 reports that "eco-terrorist" attacks, known as "ecotage", had increased.
还有其他团体也造成了与ELF差不多的破坏，2001年有报道说称作“生态性破坏”（ecotage）的“生态恐怖主义”袭击增多了。