Inter Press Service: What role can forests play in the fight against climate change? What impact do tree plantations have? What effect will the bioenergy craze have on forests? These are some of the questions that experts, government officials and business leaders from around the world will try to answer next week in Argentina. The 13th World Forestry Congress, which opens Sunday in Buenos Aires, will draw more than 4,000 participants. The international congress has been held since 1926, generally every …