The world is in a critical state, and we are far behind in our efforts to limit global warming. There are four numbers that matter according to Patricia Espinosa, Executive Secretary of the United Nations Framework Convention on Climate Change (UNFCCC):
1.5 or less – The degrees Celsius to which we must limit global warming;
2050 – the year by which the world must reach carbon neutrality;
2030 – the year by which we must limit global emissions by 35-40%; and
2020 – when new and revised Nationally Determined Contributions (NDCs), quantifying commitment for greenhouse gas reductions, must be issued by countries.