كيف يؤثر أكبر ثقب إكليلي في الشمس على الأرض؟
يشير عالم الفلك الروسي ألكسندر كيسيليوف إلى أنه تشكل على سطح الشمس عام 2026، أحد أكبر الثقوب الإكليلية يبلغ قطره حوالي مليون كيلومتر، ويظهر الثقب في الصور على شكل ثقب أسود عملاق.
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World leaders to address COP31 as Turkey pushes for new climate deal
By Tuvan Gumrukcu and Valerie VolcoviciANTALYA, Turkey, Nov 11 (Reuters) - World leaders will set out their climate priorities in speeches at COP31 in Turkey on Wednesday, as negotiators seek agreement on a plan to increase the share of electricity in global energy use and revive stalled efforts to move away from fossil fuels.Delegates from nearly 200 countries are meeting in the Mediterranean resort city of Antalya as global greenhouse gas emissions show little sign of falling and wars, inflation and other crises compete for political attention.
Science
World leaders to address COP31 as Turkiye pushes for new climate deal
CLIMATE-COP31/ (PIX):World leaders to address COP31 as Turkiye pushes for new climate deal
Science
Greta Thunberg arrives at UN climate talks saying ‘everything we love is at stake’
Greta Thunberg arrives at UN climate talks saying ‘everything we love is at stake’