Experts urged to ratify Minamata Convention to phase out mercury-added products পারদযুক্ত পণ্যের ব্যবহার বন্ধে মিনামাতা কনভেনশন অনুমোদনের আহ্বান সেন্টমার্টিন সৈকতে প্লাস্টিকের আগ্রাসন 72 birds die eating pesticide-treated masakalai Educate girls to save the planet শিশুর সর্দি-কাশি সারানোর ঘরোয়া উপায় 50 Books All Kids Should Read Before They’re 12 24 thousand under 5 children die of pneumonia in Bangladesh annually গ্রিনহাউস গ্যাস কমানোর লক্ষ্যে নানা উদ্যোগ Maldives: Eco-friendly product export destination for Bangladesh

Crop losses to pests will soar as climate warms, study warns


Rising global temperatures mean pests will devour far more of the world’s crops, according to the first global analysis of the subject, even if climate change is restricted to the international target of 2C.

Increasing heat boosts both the number and appetite of insects, and researchers project they will destroy almost 50% more wheat than they do today with a 2C rise, and 30% more maize. Rice, the third key staple, is less affected as it is grown in the tropics, which are already near the optimal temperature for insects – although bugs will still eat 20% more.

Rising heat stress on crops is already expected to cut cereal yields by about 10% for 2C of warming, but the new research indicates rising pest damage will cause at least another 4-8% to be lost. With 800 million people chronically hungry today and the global population rising towards 10bn, increasing pest destruction will worsen food security.

read more: https://www.theguardian.com/environment/2018/aug/30/crop-losses-to-pests-will-soar-as-climate-warms-study-warns

Posted by on Sep 2 2018. Filed under Food security, News at Now, News From Roots. You can follow any responses to this entry through the RSS 2.0. You can leave a response or trackback to this entry

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