Despite strong evidence that human activity played a role in catastrophic weather events, and the emergence of a fuel crisis sparked by the war in Ukraine, greenhouse gas emissions continued to rise. Nevertheless, the UN kept the climate emergency high on the international agenda, reaching major agreements on financing and biodiversity.
At the end of 2021, when the UN climate conference (COP26) wrapped up in Glasgow, none of those present could have suspected that a war in Ukraine would throw the global economy into turmoil, convincing many nations to suspend their commitments to a low carbon economy, as they scrambled to reduce their dependence on Russian oil and gas supplies, and secure fossil fuel supplies elsewhere.
Meanwhile, a host of studies pointed to the continued warming of the Earth, and the failure of humanity to lower carbon emissions, and get to grips with the existential threat of the climate emergency.
Nevertheless, the UN continued to lead on the slow, painstaking, but essential task of achieving international climate agreements, whilst putting sustained pressure on major economies to make greater efforts to cut their fossil fuel use, and support developing countries, whose citizens are bearing the brunt of the droughts, floods and extreme weather resulting from man-made climate change.
The World Meteorological Organization (WMO) released a litany of stark reports throughout the year. A January study, announcing that 2021 had joined the top seven warmest years on record, set the tone for the year.
In Summer, when record heatwaves were recorded in several European countries, the agency warned that we should get used to more to come over the next few years, whilst Africa can expect a worsening food crisis, centred on the Horn of Africa, displacing millions of people: four out of five countries on the continent are unlikely to have sustainably managed water resources by 2030.
Whilst some regions suffered from a lack of water, others were hit by catastrophic floods. In Pakistan, a national emergency was declared in August, following heavy flooding and landslides caused by monsoon rains which, at the height of the crisis, saw around a third of the country underwater. Tens of millions were displaced.
Unprecedented floods in Chad affected more than 340,000 people in August and, in October, the UN refugee agency (UNHCR) declared that some 3.4 million people in west and central Africa needed aid, amid the worst floods in a decade.