Mr Macron has has downplayed any expectations of a unified front from the leaders of the G7 democracies.
Mr Macron tweeted: "Our house is burning". "According to a study by Thomas Lovejoy and Carlos Nobre, negative synergies between deforestation, climate change and widespread use of fire indicate a tipping point for the Amazon system to flip to non-forest ecosystems in eastern, southern and central Amazonia at 20-25 percent deforestation".
On Friday, British Prime Minister Boris Johnson reiterated Macron's stance and said that worldwide cooperation is needed to protect rainforests.
Earlier in the week, Mr Bolsonaro accused NGOs of starting the fires.
He adds, future trade prospects are very exciting, and their relationship is perhaps even stronger than before.
Prime Minister Antii Rinne of Finland, whose country currently holds the EU's rotating presidency, described himself as "truly anxious about the attitude Brazil seems to have adopted right now regarding its own forests" and called the Amazon fires "a threat to our whole planet, not just to Brazil or South America".
Speaking after the agreement as announced, the head of Abiec, Antônio Camardelli, said the pact could help Brazil gain access to prospective new markets, like Indonesia and Thailand, while boosting sales with existing partners, like the EU.
Schulze said South America, and Brazil in particular, "deserve our support when it comes to preserving the rainforest".
"Instead of spreading outrageous lies or denying the scale of deforestation taking place, we urge the president to take immediate action to halt the progress of these fires", the global human rights group said in a statement.
Bolsonaro has pushed back against some of the concern.
French diplomats have raised the idea of United States waivers on sanctions affecting Iranian oil exports to India and China, or a new credit line for Tehran that could help the struggling economy.
Regardless of Trudeau's politics, the fact that the world's leaders plan to address the ongoing fires in the Amazon should be welcome news to many.
"Spreading unfounded data and messages inside or outside Brazil does not help solve the problem and lends itself only to political use and misinformation", he said.
Bolsonaro told reporters in Brazil's capital Brasilia that he would decide Friday on whether to send the army to the fire-ravaged areas.
Bolsonaro has repeatedly said he believes Brazil should open up the Amazon to business interests, allowing mining, agricultural and logging companies to exploit its natural resources. Just how big a jump is it this year in terms of the spread of the fire? Without enough trees to create the rainfall needed by the forest, the longer and more pronounced dry season could turn more than half of the rainforest into a tropical savannah, they wrote previous year in the journal Science Advances.
An estimated 99 percent of the Amazon's fires are started by people, 'either on goal or by accident, ' according to Alberto Setzer, a senior scientist at Brazil's National Institute for Space Research (INPE). Bolsonaro sees these kinds of regulations as in impediment to economic growth in the Amazon region. Bolsonaro has said he wants to convert land for cattle pastures and soybean farms. Scientists say the number of fires are up 84% in 2019 versus a year ago. "It's the best time to burn because the vegetation is dry".
As the world's largest rainforest, the Amazon plays a crucial role in keeping our planet's carbon-dioxide levels in check. "And that's what we're suspecting is going on down there".
He said he would not ratify the EU-Mercosur pact while President Jair Bolsonaro maintained his current, denialist stance on climate change.
CNN's Taylor Barnes, Abel Alvarado and Amir Vera contributed from Atlanta and Barbara Wojazer and Ivana Kottasová contributed from London.
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