Dr. Ahmed Djoghlaf

פורסם: 10.02.12, 6:25 am

Field of reference: Biology, Ecology

Description: Data about extinction of species

"We are experiencing the greatest wave of extinctions since the disappearance of the dinosaurs. Extinction rates are rising by a factor of up to 1,000 above natural rates. Every hour, three species disappear. Every day, up to 150 species are lost. Every year, between 18,000 and 55,000 species become extinct. The cause: human activities."

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שייך לנושאים: 1-13 - חינוך אינטגרלי, -מקורות מדעיים, משבר, 2. לראשונה גלובלי

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