Over 2,500 delegates from 92 countries and regions gathered in Curitiba, Brazil from September 29 to October 5, 2019 to participate in the 25th IUFRO World Congress, which is held every five years. This is the world's highest level of international academic exchanges in the forest sector, and was held for its first time in Latin American countries.

Themed with “Forest Research and Cooperation for Sustainable Development”, the first plenary session highlighted the potential of forests, trees and forest products to mitigate climate change. In the following five keynote plenary and 350 sub-plenary and technical sessions and more than 900 posters, researchers, scholars and stakeholders in the forest sector from around the world have explored and shared the latest findings in forest research, policy management and all areas related to forests and trees. 

The congress has effectively promoted the exchange of related knowledge as to current forest situation, challenges, consequences, and possible solutions, and made researchers in various disciplines around the world think about what researchers should do to contribute more effectively to the world's most pressing forest and environmental issues.