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**When and why was the Sahara green?** ✅ Records from ocean sediment show that **the Green Sahara happens repeatedly** in Earth's history. ✅ Sometime **between 11,000 and 5,000 years ago**, after the last [ice age](https://t.me/askmenow/2624) ended, about **9 mln square kilometers (3.5 mln square miles) of the modern Sahara Desert was a green place** with lakes, where animals like elephants, hippos and antelopes feasted on thriving grasses and shrubs. ✅ The Green Sahara, **also known as the A

**Could the Sahara be green again and will Africa finally need its “Great Green Wall”?** 🟢 [Africa’s “Great Green Wall”](https://t.me/askmenow/3133) initiative was launched to hold back the Sahara from expanding southward. 🟢 This year, after an unusual influx of rain, scientists have compared satellite imagery on September 12, 2024 (⬆️upper image), versus the same day in 2023 (⬆️lower image), and have seen that the southern Sahara’s vegetation reached much farther north in 2024. ℹ️ Where t

**What is a role of Saharan dust on hurricanes?** 🌪🌧 Hurricanes, including tropical cyclone rainfall (TCR), are among the most destructive weather phenomena on Earth. 🌡💧Traditionally, sea surface temperature or humidity in the atmosphere were considered as the main factor controlling hurricane precipitation. 🏜❗️Now, scientists believe that **Sahara dust plays a leading role on hurricane formation** over the ocean, which affects weather in America. ℹ️ Previous studies have found that [Sahara