According to the Sixth Assessment Report (AR6) of the Intergovernmental Panel on Climate Change (IPCC), human activities have significantly affected the planet. As global emissions of greenhouse gases (mainly carbon dioxide) continue to rise, so do global temperatures – with serious ecological consequences. Between 2011 and 2020, global surface temperatures rose an estimated 1.07 °C (2.01 °F) above the 1850–1900 average. At this rate, temperatures could increase further by 1.5 °C to 2 °C (2.7 °F to 3.6 °F), depending on whether we can reach net zero by 2050. (Matt Williams, Universe Today, More at phys.org)