1 Subjects: “...drought, food security, global warming, salinity, heat stress, greenhouse gas...”

2 Subjects: “...climate change, deforestation, methane, carbon dioxide, cattle, greenhouse gas emissions...”

3 Subjects: “...greenhouse gas...”

4 Subjects: “...greenhouse gas...”

5 Subjects: “...greenhouse gas...”

6 Subjects: “...greenhouse gas emission...”

7 Subjects: “...greenhouse gas emissions...”

8 Subjects: “...greenhouse gas (GHG) emissions...”

9 Subjects: “...greenhouse gas...”

10 Subjects: “...greenhouse gas...”

11 Subjects: “...greenhouse gas...”

12 Subjects: “...greenhouse gas emissions...”

13 Subjects: “...greenhouse gas emission...”

14 Subjects: “...greenhouse gas emission...”

15 Subjects: “...greenhouse gas emissions...”

16 Subjects: “...greenhouse gas...”

17 Subjects: “...greenhouse gas emissions...”

18 Subjects: “...greenhouse gas emissions...”

19 Subjects: “...greenhouse gas emissions...”

20 Subjects: “...soil greenhouse gas flux...”