Climate change and Rwanda's entry into the Commonwealth were positive outcomes of a summit President Jacob Zuma attended in Trinidad and Tobago this week.
"A declaration on climate change and the admission of Rwanda into the Commonwealth were key outcomes", said Presidental spokesperson Vincent Magwenya in a statement on Sunday.
"The agreement on climate change reflects the Commonwealth's readiness to confront serious challenges currently facing the world", said President Zuma.
The summit ended on Sunday and Zuma is expected back in the country on Monday.
During his visit Zuma met with the Heads of State of the Carribbean Community (Caricom).
"The history and future of the peoples of Africa and the Caribbean are intertwined."
Zuma said the African Union and Caricom needed to forge stronger links.
"We must speak with one voice to advance our interest on trade and economic relations including tourism, climate change, peace and security and other matters of mutual interest."
Zuma also met with the Prime Minister of Mauritius, Navin Ramgoolam.
The situation in Zimbabwe and Madagascar were amongst the issues discussed.
On Saturday, Zuma met with United Nations (UN) secretary-general Ban Ki-moon, Danish Prime Minister Lars Loekke Rasmussen and Australian Prime Minister Kevin Rudd.
All three expressed a desire to attend next years Fifa Soccer World Cup and Zuma told them the country was ready to wealcome them if they did attend.
Ban Ki-Moon and Zuma also discussed issues in various parts of Africa including Zimbabwe, Madagascar, Sudan, the Horn of Africa, the Democratic Republic of Congo and Burundi.
"Zuma called for the UN to continue supporting all efforts aimed at bringing stability to Somalia and other parts of Africa."