Alongside the customary speeches from heads of state, five important high-level summits and meetings will be taking place, covering many of the key issues facing today's world.
UN chief Antonio Guterres has made the fight against the climate crisis one of his top priorities: by convening the Climate Action Summit, on September 23, Mr. Guterres aims to boost ambition, and hold countries to the international commitments they made to cut global warming, as part of the 2015 Paris Agreement.
The Summit will bring together governments, the private sector, civil society, local authorities and other international organizations to develop ambitious solutions in six areas:
A global transition to renewable energy. Sustainable and resilient infrastructures and cities. Sustainable agriculture Management of forests and oceans. Resilience and adaptation to climate impacts. Alignment of public and private finance with a net zero economy.
The Secretary-General has challenged leaders to come to the summit with concrete plans, rather than grand speeches, and expects the event to demonstrate massive movements in the economy away from fossil fuels, and towards clean, renewable energy sources: "I want to hear about how we are going to stop the increase in emissions by 2020, and dramatically reduce emissions to reach net-zero emissions by mid-century".
In recognition of the way that young people, are forcing climate action onto the international agenda, a Youth Climate Summit will take place on September 21, as a platform for young activists, innovators and entrepreneurs, who are driving climate action, to showcase their solutions at UN Headquarters, and meet international decision-makers.
On the same day as the Climate Action Summit, the UN will host the first-ever High-Level Meeting on Universal Health Coverage, with the tagline "Moving Together to Build a Healthier World" which, the UN says, will be the most significant political meeting held on universal health coverage ever.
With at least half of the world's population lacking access to the essential health services they need, and health costs pushing almost 100 million into extreme poverty each year, the meeting is being billed as the best opportunity to secure political commitment from Heads of State and Government to prioritize and invest in universal health coverage and ensure health for all.
All countries have committed to trying to achieve universal health coverage by 2030, which includes financial risk protection, high-quality health care services, and access to safe, effective, quality and affordable essential medicines and vaccines.
The Sustainable Development Goals projected onto UN Headquarters, New York, in 2015, by UN Photo/Cia Pak
The 2030 Agenda for Sustainable Development - the most ambitious undertaking ever to transform our world, boost prosperity and ensure well-being for all, while protecting the environment - is divided into 17 Sustainable Development Goals, or SDGs.
Among there are a commitment to:
End poverty and hunger; expand access to health, education, justice and jobs. Promote inclusive and sustained economic growth. Protect the planet from environmental degradation, and alleviate the climate crisis.
Taking place on September 24 and 25, the SDG Summit will be the first of its kind since the Agenda was adopted in 2015, and is a chance to accelerate progress on the 17 Goals and their targets.
The UN has seen progress over the last four years, but warns that conflict, climate change, lack of access to essential health services, growing inequalities and significant financing gaps have limited the impact of global efforts. Those left behind continue to suffer the most, including those in Small Island Developing States (SIDS), least developed countries (LDCs) and landlocked developing countries.
None of the Goals can be achieved without hard cash, but raising enough financing is a major challenge. Rising debt risks, and trade-restrictive measures, mean that investments critical to the 2030 Agenda remain underfunded.
The High-Level Dialogue on Financing for Development, on September 26, will bring together leaders from government, business and the financial sector, in a bid to unlock the resources and partnerships needed, and accelerate progress.
It has been estimated that annual investments of around $5 to $7 trillion across all sectors are needed to achieve the SDGs, and the UN Secretary-General is calling for an environment that enables long-term investments in sustainable development, to promote the health and well-being of people, and the planet.
The UN Secretary-General Antonio Guterres visited the low-lying island of Tuvalu in May 2019 to see how Pacific Ocean nations would be affected by the rise in sea levels, by UN Photo/Mark Garten
The last of the five summits is the High-Level Midterm Review of the SAMOA Pathway, which take place five years after an ambitious agreement was reached, to support sustainable development in small island developing states.
These are among the most vulnerable countries in the world, facing a unique set of issues relating to their small size, remoteness, exposure to external economic shocks, and global environmental challenges, including the impacts of climate change.
The review will discuss progress made on combating the devastating impact of climate change, building economic and environmental resilience, and other challenges. These issues will also be featured prominently in the other four summits taking place the same week.
Governments, the private sector, civil society, academia and a wide range of other stakeholders, will be encouraged to launch new partnerships that advance the implementation of priority areas of the SAMOA Pathway, and the Sustainable Development Goals in small island developing states.
For a general overview of what to expect as the General Assembly gets underway, here's a curtain raiser.