https://padlet.com/oboujnine/8ulgkhvoy86x Made by Ousama Benkhira en-us 2016-12-01 12:05:51 UTC 2025-11-29 19:45:16 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Hotsun.png oboujnine https://padlet.com/oboujnine/8ulgkhvoy86x/wish/141070788 The extent of ocean  covered by ice is getting smaller each year. The extent of the Artic sea nhas decreased by 14% since the 1970s.]]> 2016-12-01 12:19:25 UTC https://padlet.com/oboujnine/8ulgkhvoy86x/wish/141070788 oboujnine https://padlet.com/oboujnine/8ulgkhvoy86x/wish/141071465 The sun is the source of all energy on our planet. But many different factors affect how much of the sun's energy goes into the Earth system and how much of it goes into the space.]]> 2016-12-01 12:23:39 UTC https://padlet.com/oboujnine/8ulgkhvoy86x/wish/141071465 oboujnine https://padlet.com/oboujnine/8ulgkhvoy86x/wish/143335953 Carbon dioxide is the most important  of the greenhouse gases, about 80% of the world's energy  is currently supplied by fossil fuels such as coal, oil and gas, causing great emissions of Co2.]]> 2016-12-13 12:55:58 UTC https://padlet.com/oboujnine/8ulgkhvoy86x/wish/143335953 oboujnine https://padlet.com/oboujnine/8ulgkhvoy86x/wish/143337479 Greenhouse gases keep the Earth warm through a process called the greenhouse effect.]]> 2016-12-13 13:02:42 UTC https://padlet.com/oboujnine/8ulgkhvoy86x/wish/143337479 oboujnine https://padlet.com/oboujnine/8ulgkhvoy86x/wish/144328611 The main greenhouse gases are water vapour, carbon dioxide (CO2), methane (CH4) and HFCs.]]> 2016-12-19 15:31:27 UTC https://padlet.com/oboujnine/8ulgkhvoy86x/wish/144328611 oboujnine https://padlet.com/oboujnine/8ulgkhvoy86x/wish/144331077 Alpine glaciers are very susceptible to changes in the climate. Over long periods, glacial response to average temperature becomes obvious. Nowdays, most glaciers in the world are retreating.]]> 2016-12-19 15:42:03 UTC https://padlet.com/oboujnine/8ulgkhvoy86x/wish/144331077