Carrie Khan

Carrie Khan, NPR News, Cucuta, Colombia.

President Trump isn't going, nor are the leaders of China, Russia or India.

The summit's overall goal, however, is still to get countries to stick to promises of lowering greenhouse gas emissions and limit global warming to 1.5 degrees Celsius.

But ahead of the summit, Brazil's President Luiz Inácio Lula da Silva warned leaders, quote, the window of opportunity we have to act is rapidly closing.

Urging more action from richer nations, Lula is pushing his tropical forest preservation plan.

He wants wealthier nations to pay poorer countries to protect their forests.

He also insisted the conference be held in the Amazon, despite the logistical challenges of housing some 50,000 participants in the small city of Belen.

Carrie Khan, NPR News, Rio de Janeiro.

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According to the Spanish newspaper El Pais, Jonathan Obando Perez was discharged last week from a Bogota hospital.

The 34-year-old was one of two survivors of a U.S.

military strike on a suspected drug-smuggling submarine.

Federal officials in Bogota say there were no plans to launch a formal investigation against Obando and

as it has no evidence he committed a crime in Colombia.

President Trump had posted on social media that Obando would be detained and prosecuted in Colombia.

Officials there also made similar assurances.

The other survivor of the attack, an Ecuadorian with a criminal narcotics record in the U.S., was also released once returned to his home country.

Carrie Khan, NPR News, Rio de Janeiro.

The bill allows Brazilians an exemption from taxes, raising the limit the poor and middle class can make to the equivalent of about 900 U.S.

dollars a month.