1. Role of phytohormones in plant responses to acid rain -- 2. The complex interaction between elevated CO2 and hormones on the control of plant growth -- 3. Role of plant hormones in plant response to elevated CO2 concentrations - above- and below-ground interactions -- 4. The intriguous roles of phytohormones in plant response to ozone interacting with other major climate-change stressors -- 5. Role of phytohormones in plant responses to acid rain -- 6. The role of plant hormones in fruit response to photo-oxidative and heat stress -- 7. Phytochrome and hormone signaling crosstalk in response to abiotic stresses in plants -- 8. Phytohormone-mediated regulation of heat stress response in plants -- 9. Phytohormones and cold stress tolerance -- 10. Drought stress: involvement of plant hormones in perception, signaling and response -- 11. Involvement of phytohormones in flooding stress tolerance in plants -- 12. Roles of long-distance signals in nitrogen, phosphorus, and sulfur uptake and sensing in plants -- 13. Phytohormone involvement in plant responses to soil acidity -- 14. Plant response to toxic metals: emerging sources, phytohormone role and tolerance strategies.