Analysis of information sources in references of the Wikipedia article "Campbell Island, New Zealand" in English language version.
Chris Turney, from the University of New South Wales, Australia, and colleagues, say the Sitka spruce captures this change exquisitely in the chemistry of its growth rings. [...] "We're putting this forward as a serious contender to mark the start of the Anthropocene. It's got to be something that reflects a global signal," Prof Turney told BBC News.