{"id":2592,"date":"2020-05-27T19:21:38","date_gmt":"2020-05-27T19:21:38","guid":{"rendered":"https:\/\/www.zavit.org.il\/intl\/?p=2592"},"modified":"2020-05-27T19:23:57","modified_gmt":"2020-05-27T19:23:57","slug":"holidays-and-the-environment-from-shavuot-to-dairy-to-desalination","status":"publish","type":"post","link":"https:\/\/www.zavit.org.il\/intl\/en\/health-nutrition\/holidays-and-the-environment-from-shavuot-to-dairy-to-desalination\/","title":{"rendered":"From Shavuot to Dairy to Desalination"},"content":{"rendered":"\n
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Photo by Angelina Litvin on Unsplash<\/em><\/figcaption><\/figure>\n\n\n\n

Shavuot, meaning \u201cweeks\u201d (in reference to the seven weeks between Passover and Shavuot), will begin at sundown this Thursday. Shavuot was celebrated as an agricultural holiday during Biblical times, where the ancient Israelites completed the harvest of wheat and offered two loaves of bread from the grains that they had harvested that season. <\/p>\n\n\n\n

Over the centuries, a custom of eating dairy products emerged amongst Jewish communities around the world. While there are many reasons for this peculiar custom, some say that it originates from a verse in Song of Songs where the Bible is compared to milk and honey. As Shavuot is also considered to be a celebration of the Israelite nation receiving the Torah, it would seem appropriate to include a dairy-based meal as part of the celebration.<\/p>\n\n\n\n

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Shavuot was celebrated as an agricultural holiday during Biblical times, where the ancient Israelites completed the harvest of wheat. Photo by OM-David77 on Flickr<\/em><\/figcaption><\/figure>\n\n\n\n

52 liters of water for a single liter of\nmilk<\/strong><\/p>\n\n\n\n

Did you know that the dairy industry is quite notorious for its contribution to greenhouse gas emissions, groundwater contamination, inefficient land use, and the overuse of antibiotics? Or that the production of milk requires significant amounts of water? Researchers<\/a> found that 52 liters of water are needed to produce just a single liter of milk. In light of climate change and the continual depletion of natural water resources, this would seem like a potential issue for water-scarce countries and regions. <\/p>\n\n\n\n

Luckily, Israel no longer suffers from water\ndeficits since it began implementing technological solutions to its water\nmanagement program in the early 2000s. Since then, through the use of\ndesalination and wastewater recycling technologies, Israel currently supplies\napproximately 50%<\/a> of its water needs from both\nof these inventions, thus, no longer solely relying on its natural resources. <\/p>\n\n\n\n

Today, Israel is producing more than 604 MCM<\/a> (million cubic meters) of desalinated water every year and treats 93% of its 500 MCM of annual sewage, which is primarily used for irrigation in agriculture.<\/p>\n\n\n\n

This has reduced the amount of stress placed on natural water resources, which were mainly supplied by the Kinneret, and the mountain and coastal aquifers. No longer having to extract from natural supplies has also enabled environmental rehabilitation of water resources that had been exploited for decades.<\/p>\n\n\n\n

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Israel is producing more than 604 million cubic meters of desalinated water every year. Photo by Manki Kim on Unsplash<\/em><\/figcaption><\/figure>\n\n\n\n

The Cost of Water<\/strong><\/p>\n\n\n\n

However, these technologies do not come without\na cost. While desalination has been supplying Israel with approximately 25%<\/a> of its water demand, it is\nan energy-intensive process and produces harmful byproducts that affect marine\nlife. <\/p>\n\n\n\n

On average, for any amount of water entering a\nreverse osmosis desalination facility, half<\/a> of it is turned\ninto potable (drinking) water, while the other half is turned into a\nhypersaline brine that gets pumped back into the ocean. This hypersaline brine\naffects ocean environments in two ways – by reducing oxygen levels and\nincreasing salt content. Since hyper saline brine is highly concentrated, it is\ndenser than seawater and sinks to the bottom of the seafloor, disrupting marine\necosystems.<\/p>\n\n\n\n

For now, Mekorot<\/a>, Israel\u2019s\nnational water company, is redirecting some of the hypersaline brine from some\nof the seawater desalination plants into evaporation pools to produce salt.\nHowever, the costs of doing so are relatively high. They are also in the\nprocess of \u201cexamining<\/a> innovative\ntechnologies for the treatment of the brine.\u201d<\/p>\n\n\n\n

Recycled wastewater also comes with its own\nchallenges. While it is cheaper than desalination and prevents some sewage from\notherwise being dumped into waterways, concerns have been raised about the\npotential contamination of microorganisms and traces of pharmaceuticals that\nhave not been filtered out of the treated water. Due to these concerns,\nrecycled water is only permitted for agricultural use in Israel. However, researchers<\/a> have shown that\neating produce irrigated with recycled water, has led to elevated levels of\ncarbamazepine – an antiepileptic drug – in urine samples. <\/p>\n\n\n\n

Israel has definitely solved its water crisis for the time being through the use of innovative water technologies. However, it must continue to develop novel solutions to address the challenges of desalination and wastewater reclamation. <\/p>\n\n\n\n

This ZAVIT article was also published in The Jewish Journal<\/a> <\/a>on 05\/27\/2020.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Shavuot, meaning \u201cweeks\u201d (in reference to the seven weeks between Passover and Shavuot), will begin at sundown this Thursday. Shavuot …<\/p>\n","protected":false},"author":122,"featured_media":2595,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":[],"categories":[15,11,9],"tags":[],"acf":[],"post-meta-fields":{"_edit_lock":["1590607373:11"],"_edit_last":["11"],"subtitle":["To prevent public gatherings during COVID-19, Lag BaOmer took place without bonfires, resulting in a significant reduction in air pollution. Now, Shavuot will be the first holiday to be celebrated after most restrictions have been lifted in Israel"],"_subtitle":["field_59d3d36ea7fe1"],"_wpml_media_duplicate":["1"],"_wpml_media_featured":["1"],"_thumbnail_id":["2595"]},"_links":{"self":[{"href":"https:\/\/www.zavit.org.il\/intl\/wp-json\/wp\/v2\/posts\/2592"}],"collection":[{"href":"https:\/\/www.zavit.org.il\/intl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zavit.org.il\/intl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zavit.org.il\/intl\/wp-json\/wp\/v2\/users\/122"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zavit.org.il\/intl\/wp-json\/wp\/v2\/comments?post=2592"}],"version-history":[{"count":8,"href":"https:\/\/www.zavit.org.il\/intl\/wp-json\/wp\/v2\/posts\/2592\/revisions"}],"predecessor-version":[{"id":2618,"href":"https:\/\/www.zavit.org.il\/intl\/wp-json\/wp\/v2\/posts\/2592\/revisions\/2618"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.zavit.org.il\/intl\/wp-json\/wp\/v2\/media\/2595"}],"wp:attachment":[{"href":"https:\/\/www.zavit.org.il\/intl\/wp-json\/wp\/v2\/media?parent=2592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zavit.org.il\/intl\/wp-json\/wp\/v2\/categories?post=2592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zavit.org.il\/intl\/wp-json\/wp\/v2\/tags?post=2592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}