Greenhouse gases 2 Meteorology and Climate 2 Plants 2 Trees 2 Woody plants 2 Atmospheric carbon dioxide 1 Carbon dioxide 1 Climatic change 1 Climatic changes 1 Climatic factors 1 Cotton 1 Crop production 1 Crop yield 1 Crop yields 1 Crops and climate 1 Ecosystems 1 Emission 1 Environmental factors 1 Environmental impact 1 Field Crops, (New March 2000) 1 Forest ecology 1 Forest plants 1 Forest trees 1 Forests 1 Forests and Forest Trees (Biology and Ecology) 1 Glycine (Fabaceae) 1 Gossypium 1 Grasslands 1 Greenhouse effect 1 Growth 1