The COP26 conference in Glasgow began after the G20 nations did not commit to a 2050 target to stop net carbon emissions, which is seen as crucial to prevent severe global warming. Instead, their discussions in Rome only acknowledged the importance of stopping net emissions by mid-century, did not set a timeline for phasing out coal domestically, and weakened promises to reduce methane emissions, a potent greenhouse gas. Greta Thunberg, a Swedish activist, called on her followers to sign an open letter criticizing leaders for their inaction on climate change. She urged leaders to address the climate crisis immediately, not in the future. "Not next month, but now" is the message being emphasized by leaders who will be speaking at the climate change conference in Glasgow. They will be defending their records on climate change and possibly making new commitments during the two weeks of negotiations. British Prime Minister Boris Johnson, in advance excerpts of his speech, states that humanity is running out of time to address climate change and urgent action is needed. If we do not take immediate action on climate change, our children will not be able to address the issue in the future. However, disagreements among major emitters on how to reduce coal, oil, and gas usage, as well as support developing countries in adapting to global warming, will complicate the situation. US President Joe Biden criticized China and Russia for not presenting proposals at the G20 summit. Chinese President Xi Jinping, the largest emitter of greenhouse gases, will address the conference in a written statement on Monday. Turkish President Tayyip Erdogan will not be attending the COP26 conference in Glasgow due to Britain's failure to meet Ankara's security and protocol demands. The conference, delayed by a year because of the COVID-19 pandemic, is focused on capping global warming at 1.5 degrees Celsius above pre-industrial levels to avoid the most destructive consequences of climate change. To achieve this goal, the conference needs more ambitious pledges to reduce emissions, secure climate-related financing for developing countries, and finalize the rules for implementing the 2015 Paris Agreement. Existing pledges to cut emissions would result in a 2.7-degree Celsius rise in the planet's average surface temperature, intensifying the destruction caused by climate change. Ugandan activist Evelyn Acham stated to the Italian newspaper La Stampa that Africa, despite being responsible for only 3 percent of global emissions, is enduring the most severe consequences of the climate crisis. She emphasized that Africans are not to blame for the crisis, but are still suffering the effects of colonialism, which exploited Africa's resources for many years. Acham stressed the importance of sharing responsibilities equitably. Following two days of speeches by world leaders starting on Monday, technical negotiations will take place. It is possible that a deal may not be reached until close to or even after the event's conclusion on November 12.