The goal of limiting global warming to 1.5˚C above pre-industrial levels is outlined in the Paris Agreement, which was adopted in 2015. According to various climate models and assessments, the world is currently on a trajectory that could lead to reaching the 1.5˚C target sometime between 2030 and the early 2050s if current trends continue.
It’s important to note that these are projections and subject to change based on various factors, including global efforts to reduce greenhouse gas emissions. The Intergovernmental Panel on Climate Change (IPCC) regularly releases assessment reports that provide updated information on climate change projections, but the exact timing of reaching specific temperature targets depends on future developments.
To get the most accurate and up-to-date information on the current status of global warming and progress towards the 1.5˚C target, it is recommended to refer to the latest IPCC reports and other relevant scientific sources.