Climate change in the recent past. WMO | Executive Action Plan for the Early Warnings for All

The Executive Action Plan for the Early Warnings for All (WMO) initiative calls for initial new targeted investments between 2023 and 2027 of US$3.1 billion – a sum that would be dwarfed by the benefits.

The past eight years are on track to be the eight warmest on record, and the telltale signs and impacts of climate change are becoming more dramatic, warns a new report.

UNEP | Adaptation Gap 2022

Countries must dramatically increase funding and implementation of measures designed to help vulnerable nations and communities, says the latest Adaptation Gap report.

The past eight years are on track to be the eight warmest on record, fueled by ever-rising greenhouse gas concentrations and accumulated heat. Extreme heatwaves, drought and devastating flooding have affected millions and cost billions this year, warns the Provisional State of the Global Climate report.

Emissions Gap Report 2022: The Closing Window

Inadequate progress on climate action calls for the urgent sector and system-wide transformations – in the electricity supply, industry, transport and buildings sectors, and the food and financial systems – as current climate pledges leave the world on track for a temperature rise of 2.4-2.6°C by the end of this century.

Climate Change 2022: Mitigation of Climate Change

Without immediate and deep emissions reductions across all sectors, limiting global warming to 1.5°C (2.7°F) is beyond reach. In the scenarios assessed, limiting warming to around 1.5°C requires global greenhouse gas emissions to peak before 2025 at the latest, and be reduced by 43% by 2030; at the same time, methane would also need to be reduced by about a third. According to the report, there is increasing evidence of climate action. From 2010-2019, average annual global greenhouse gas emissions were at their highest levels in human history, but the rate of growth has slowed. An increasing range of policies and laws have enhanced energy efficiency, reduced rates of deforestation and accelerated the deployment of renewable energy.

State of Global Climate 2021

Record atmospheric greenhouse gas concentrations and associated accumulated heat have propelled the planet into uncharted territory, with far-reaching repercussions for current and future generations. This report finds the past seven years are on track to be the seven warmest on record, based on data for the first nine months of 2021. A temporary cooling “La Niña” event early in the year means that 2021 is expected to be “only” the fifth to seventh warmest year on record. But this does not negate or reverse the long-term trend of rising temperatures. Global sea level rise accelerated since 2013 to a new high in 2021, with continued ocean warming and ocean acidification. The report combines input from multiple United Nations agencies, national meteorological and hydrological services and scientific experts. It highlights impacts on food security and population displacement, harming crucial ecosystems and undermining progress towards the Sustainable Development Goals.