An environmental disaster was uncovered off California after 70 years
DDT is not that hazardous to mammals.[1] The problem is that it&#x27;s persistent. It&#x27;s very stable. That&#x27;s bad for agricultural use, but it was good for its use in home construction, where spraying it inside walls killed bedbugs for many decades. Nothing we have today is as effective.<p>The sea lion cancer problem seems to be a sexually transmitted disease. [2] Pollution may make this worse, but it&#x27;s not clear that DDT is the culprit. Some sources say PCBs may be responsible.<p>[1] <a href="https:&#x2F;&#x2F;www.acsh.org&#x2F;news&#x2F;2016&#x2F;02&#x2F;11&#x2F;how-poisonous-is-ddt" rel="nofollow">https:&#x2F;&#x2F;www.acsh.org&#x2F;news&#x2F;2016&#x2F;02&#x2F;11&#x2F;how-poisonous-is-ddt</a><p>[2] <a href="https:&#x2F;&#x2F;sanfrancisco.cbslocal.com&#x2F;2021&#x2F;03&#x2F;31&#x2F;marin-study-reveals-cancer-killing-california-sea-lions-is-caused-by-std&#x2F;" rel="nofollow">https:&#x2F;&#x2F;sanfrancisco.cbslocal.com&#x2F;2021&#x2F;03&#x2F;31&#x2F;marin-study-rev...</a>