Australia's prime minister says the country will stay in the Paris Agreement to avoid alienating Pacific countries.
Scott Morrison has faced growing pressure from Conservatives within his party to drop the emissions-reductions targets.
But Mr Morrison pushed back, telling a Sydney radio station that climate change dominates Pacific's thinking and priorities.
He said such a move could lessen Australia's influence in the region, which many analysts have said is already waning through a blundering reset.
Mr Morrison said technological changes meant Australia would likely meet its emissions targets without any wholesale changes to its energy and mining policies.
Australia recently abandoned a law the imposed emissions reductions targets.