Are E-Cigarettes Safe? | Earth Science

Greg Foot explains what an e-cigarette does, how it works and how safe they are.

Footnote 1 - https://www.gov.uk/government/uploads...
Footnote 2 - https://www.gov.uk/government/uploads... and http://edition.cnn.com/2013/12/16/hea...
Footnote 3 - http://www.theguardian.com/society/20...
Footnote 4 - http://www.bbc.co.uk/news/health-2907...
Footnote 5 - http://www.ncbi.nlm.nih.gov/pubmed/22...
Footnote 6 - http://onlinelibrary.wiley.com/doi/10...
Footnote 7 - http://www.atsdr.cdc.gov/phs/phs.asp?...
Footnote 8 - http://www.nytimes.com/2014/03/24/bus...
Footnote 9 - http://www.nytimes.com/2014/05/04/bus... and http://www.theguardian.com/society/20... )
Footnote 10 - http://www.itv.com/news/2015-04-16/e-...
Footnote 11 - http://www.theguardian.com/society/20... and http://vaperanks.com/do-e-cigarettes-...
Footnote 12 - http://journals.plos.org/plosone/arti...
Footnote 13 - https://www.gov.uk/government/uploads...
Footnote 14 - http://www.nhs.uk/news/2014/12Decembe...

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