[tz] [PROPOSED 2/2] * tz-link.html (Costs and benefits of DST): New section.

[Paul Eggert]

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 tz-link.html | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/tz-link.html b/tz-link.html
index e34ea20..92e48d7 100644
--- a/tz-link.html
+++ b/tz-link.html
@@ -49,6 +49,7 @@ area.
 	<ul>
 	  <li><a href="#civil">Civil time concepts and history</a></li>
 	  <li><a href="#national">National histories of legal time</a></li>
+	  <li><a href="#costs">Costs and benefits of time shifts</a></li>
 	  <li><a href="#precision">Precision timekeeping</a></li>
 	  <li><a href="#notation">Time notation</a></li>
 	  <li><a href="#see-also">See also</a></li>
@@ -885,6 +886,40 @@ href="http://www.armada.gub.uy/sohma/index.php/servicios/datos-astronomicos" hre
 </dl>
 </section>
 
+<section>
+<h2 id="costs">Costs and benefits of time shifts</h2>
+<p>Various sources argue for and against daylight saving time and time
+zone shifts, and many scientific studies have been conducted. This
+section summarizes reviews of scientific literature in the area.</p>
+<ul>
+<li>Carey RN, Sarma KM.
+<a href="https://bmjopen.bmj.com/content/7/6/e014319.long">Impact of
+daylight saving time on road traffic collision risk: a systematic
+review</a>.
+<em>BMJ Open.</em> 2017;7(6):e014319. doi:<a href="https://doi.org/10.1136/bmjopen-2016-014319">10.1136/bmjopen-2016-014319</a>.
+This reviews research literature and concludes that the evidence
+neither supports nor refutes road safety benefits from
+shifts in time zones.</li>
+<li>Havranek T, Herman D, Irsova D.
+<a href="https://www.econstor.eu/handle/10419/174191">Does daylight
+saving save electricity? A meta-analysis</a>. <em>Energy J.</em>
+2018;39(2).
+doi:<a href="https://doi.org/10.5547/01956574.39.2.thav">10.5547/01956574.39.2.thav</a>.
+This analyzes research literature and concludes, "Electricity savings
+are larger for countries farther away from the equator, while
+subtropical regions consume more electricity because of DST."</li>
+<li>Roenneberg T, Winnebeck EC, Klerman EB.
+<a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6692659/">Daylight
+saving time and artificial time zones – a battle between
+biological and social times</a>. <em>Front Physiol.</em> 2019;10:944.
+doi:<a href="https://doi.org/10.3389/fphys.2019.00944">10.3389/fphys.2019.00944</a>.
+This reviews evidence about the health effects of DST and concludes,
+"In summary, the scientific literature strongly argues against the
+switching between DST and Standard Time and even more so against
+adopting DST permanently."</li>
+</ul>
+</section>
+
 <section>
 <h2 id="precision">Precision timekeeping</h2>
 <ul>
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