句子语法求检查（1) Furthermore,rice cultivation as well as sheep ran

(1) Furthermore, rice cultivation as well as sheep ranching can also produce numerous greenhouse gases, which, like natural gases, can lead to increased temperatures.
(2) When humans burn fossil fuels and destroy forests, they produce numerous greenhouse gases, which can affect the climate.
或
(2) When humans burn fossil fuels and destroy forests, they produce numerous greenhouse gases, which can lead to climate change.
再问： 那几个句子语法有哪些错误么...
再答： 第一句 rice cultivation as well as sheep ranching can also produce numerous greenhouse gases, such as natural gases 是因，increasing temperature 是果，要加动词或助动词 leading，即 ： ... greenhouse gases, such as natural gases, (leading) to increasing temperature. 也可照我的提议更改。 第二句 when humans ... 和 which can ... 都是从句，其中一个要改为主句。