In his address at the UN conference in Rio de Janeiro on June 21, Foreign Minister Urmas Paet called for a rapid change in people's mindsets about the world they live in.
"It is important that we not live beyond our means - particularly in regard to use of natural resources," he said.
He noted that by 2030, the world would need 50 percent more food, 45 percent more energy and 30 percent more water, and listed the state of the oceans, overfishing, deforestation and a 38 percent growth in carbon dioxide emissions over the last 20 years as concerns.
He called attention to Estonia's track record in implementing electronic services, saying that innovative solutions helped make development more effective and that such solutions were a key element in development cooperation.
"We plan to aim Estonia's development cooperation efforts increasingly into environmentally friendly economic and social development," he said.
The other lesson, he said, was that a small state could develop a startup initiative into an international project, as shown by World Cleanup 2012, which is battling 100 million tons of illegal waste in 100 countries and has its roots in the Let's Do It event in Estonia.