| 查看: 4107 | 回复: 7 | |||
李在弦木虫 (职业作家)
|
[交流]
How pollution is changing the ocean’s chemistry --- Triona Mcgrath, TED
|
|
As the speaker said, ocean provides food, including 20 percent of protein to feed the human population, jobs, medicine, and so on. Ocean also provides half oxygen we human beings breathe, moderates our earth’s climate. Although ocean is very vast, covering two thirds of our planet, it is affected by human pollution, worse and worse. 25 percent of carbon dioxide in the air, one of the green houses that lead to climate change, is dissolved in the ocean, which is changing the ocean’s chemistry. When carbon dioxide dissolves in the ocean, it increases the ocean’s acidity, the process of which is called acidification. As the ocean’s acidity increases, many bad things happen. For example, corals will be dissolved, like some kind of sea creatures’ shell, which provide food to many kinds of sea animals. Then the ocean’s food chain may be changed, too (not from the speaker). As the speaker showed, acidification of ocean is getting faster, and is not easy to recover. All we can do now, is reducing emission of carbon dioxide and decreasing the speed of acidification of ocean.  |
回复此楼» 猜你喜欢
国自然面上和省基金B类撒花
已经有4人回复
-
华师大读博
已经有3人回复
-
急需审稿人！！！
已经有3人回复
-
申博/考博
已经有8人回复
-
一志愿A区211，22408 321求调剂
已经有8人回复
-
295分求调剂
已经有6人回复
-
一志愿中科大材料与化工，353分还有调剂学校吗
已经有13人回复
-
085600材料与化工调剂
已经有6人回复
-
期刊推荐
已经有5人回复
-
有没有接收比较快的sci期刊呀，最好在一个月之内的，研三孩子求毕业
已经有7人回复
236839923
铁杆木虫 (正式写手)
- ESEPI: 2
- 应助: 0 (幼儿园)
- 金币: 8398.3
- 散金: 500
- 红花: 4
- 帖子: 832
- 在线: 238.6小时
- 虫号: 561988
- 注册: 2008-05-22
- 性别: GG
- 专业: 高分子合成化学
2楼2017-12-17 19:14:52
 |
3楼2017-12-17 20:57:01
4楼2017-12-20 04:03:08
李在弦
木虫 (职业作家)
- 应助: 10 (幼儿园)
- 金币: 5167.5
- 散金: 1397
- 红花: 15
- 帖子: 3089
- 在线: 582.2小时
- 虫号: 1681404
- 注册: 2012-03-10
- 性别: GG
- 专业: 配位化学
5楼2017-12-20 12:26:01
参差十万人家
银虫 (小有名气)
- 应助: 0 (幼儿园)
- 金币: 212.4
- 散金: 20
- 帖子: 172
- 在线: 102.6小时
- 虫号: 7067800
- 注册: 2017-08-16
- 性别: GG
- 专业: 有机化工
6楼2018-01-02 11:36:01
7楼2018-01-04 17:19:08
|
|
8楼2018-01-04 18:45:44
5