Worldwatch is overhauling and modernizing the format for VSO, so new articles will be published sporadically until we complete our overhaul.

Subscribers can find all existing 181 articles and will be notified when new articles are published.

During this overhaul period we make no commitments for the frequency of new articles.

Worldwatch Institute invites you to remain subscribed during this overhaul period in order to access the analyses, data, and references of existing Vital Signs trends.

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The Worldwatch Institute is an independent research organization known around the world for its accessible, fact-based analysis of critical global issues. Learn More