The eight countries that share the Amazon basin have fallen short of an agreed goal to end deforestation.
Delegates from the countries are meeting in the Brazilian city of Belém for a two-day summit on the issue, the first such gathering in 14 years.
A joint declaration created an alliance to combat deforestation but left each country to pursue its own conservation goals.
Ahead of the summit, Brazilian President Luiz Inácio Lula da Silva had called for a common goal of ending deforestation by 2030, a policy his own government has already adopted.
Lula says the challenges of our era, and the opportunities arising from them, demand we act in unison.