Anthony Albanese has exhorted the world's nations to co-operate on climate change and peacekeeping as he warned the US can't be relied on to uphold the international rules-based order on its own.

The prime minister called for more action on climate change, an end to conflict in Gaza and Ukraine, and alleviating poverty and inequality in a wide-ranging speech to the United Nations on Thursday morning (AEST).

His appeal for greater international co-operation comes at a time when the US under President Donald Trump is increasingly vacating its space as global leader and the rules-based order is threatened by growth of authoritarianism and regional conflict.

"The creation of the international rules based order owes much to the post-war leadership of the United States of America," Mr Albanes

See Full Page