This graphic is a derivative work of the <a href="https://en.wikipedia.org/wiki/Ed_Hawkins_(scientist)" class="extiw" title="w:Ed Hawkins (scientist)">Ed Hawkins</a> original that is shown and linked below.
<p>Graphic including "stacked" <a href="https://en.wikipedia.org/wiki/Warming_stripes" class="extiw" title="w:Warming stripes">Warming stripes</a> showing annual mean temperatures for various countries (1901-2018), grouped by continent.
</p><p>Source indicates: "This graphic was produced specifically for the BBC article"--which was published on 21 June 2019, which I as uploader treat as first publication date below. (<a rel="nofollow" class="external text" href="https://web.archive.org/web/20190629140556/https://www.bbc.com/news/science-environment-48678196">Link to BBC article</a>).
</p><p><i>General notes:</i>
</p>
<ul><li><i>Credit for general concept of <a href="https://en.wikipedia.org/wiki/warming_stripes" class="extiw" title="w:warming stripes">warming stripes</a>:</i> climate scientist <a href="https://en.wikipedia.org/wiki/Ed_Hawkins_(scientist)" class="extiw" title="w:Ed Hawkins (scientist)">Ed Hawkins (scientist)</a>, <a href="https://en.wikipedia.org/wiki/University_of_Reading" class="extiw" title="w:University of Reading">University of Reading</a>, U.K.</li>
<li>Data values are visualized using color rather than locations of points on a graph.</li>
<li>Horizontal scale is time, from 1901 (left) to 2018 (right).</li></ul>
<a href="https://en.wikipedia.org/wiki/Ed_Hawkins_(scientist)" class="extiw" title="w:Ed Hawkins (scientist)">Ed Hawkins</a>, climate scientist at <a href="https://en.wikipedia.org/wiki/University_of_Reading" class="extiw" title="w:University of Reading">University of Reading</a>, is creator of the original image of which the present image is derived.
CC BY-SA 4.0
<p>Is a simple derivative work (larger legends) of the original Creative Commons-licensed work found at:
</p>
<dl><dd>Hawkins, Ed, <a rel="nofollow" class="external text" href="https://web.archive.org/web/20190802205935/http://www.climate-lab-book.ac.uk/2019/showyourstripes/">#ShowYourStripes</a>. <i>Climate Lab Book</i> (<span class="mw-formatted-date" title="2019-07-21">21 July 2019</span>). Archived from <a rel="nofollow" class="external text" href="http://www.climate-lab-book.ac.uk/2019/showyourstripes/#more-5629">the original</a> on <span class="mw-formatted-date" title="2019-08-02">2 August 2019</span>. "LICENSE / Creative Commons License / These blog pages &amp; images are licensed under a Creative Commons Attribution-ShareAlike 4.0 International License." (<a rel="nofollow" class="external text" href="https://web.archive.org/web/20190802210355/http://www.climate-lab-book.ac.uk/files/2019/06/all_countries_BBC-e1563724721978.png">Direct link to image</a>).</dd></dl>