The European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) and the National Environmental Satellite Data and Information Service (NESDIS) of the National Oceanic and Atmospheric Administration (NOAA) both released lists of their top events, images, videos, and case studies during the year 2021.

On the 13th and 15th of January 2022 the underwater volcano on Hunga Tonga-Hunga Ha’pai, located in the South Pacific Kingdom of Tonga erupted. The eruption on the 15th of January 2022 was seven times more powerful than the first eruption of the volcano, which took place on the 20th of December 2021. Additionally, it led to a tidal gauge, resulting in a tsunami wave that impacted countries in the Pacific Ocean, from the Kingdom of Tonga, Australia and New Zealand, Japan, up to Peru, among others, on the other side of the Pacific.

UN-SPIDER's association with the International Asteroid Warning Network (IAWN) and contribution to the IAA Planetary Defense Conference 2021 has resulted in a landmark publication in the International Journal of Disaster Risk Science. Read the abstract or follow the provided links to find more information.

In 2021, disasters triggered by different types of hazards impacted developed and developing countries around the world. Different regions of the United States were impacted by tornados, hurricanes, heatwaves, oils spills, and forest fires.  Germany, Belgium, and Luxemburg saw unprecedented floods and other countries like India, Sudan, Togo, Sri Lanka, Somalia, Bolivia, and China also experienced floods.

Global warming has been impacting the planet in recent decades and is leading to more frequent and intense hydrometeorological events such as storms, floods, heatwaves, and droughts. Eastern Canada experienced a very strong heatwave in the spring, California, Greece, Algeria, Russia and other countries saw extreme forest fires while other countries like Germany faced the challenges of responding to floods and debris flows with an estimated period of return of nearly 800 years.

As the year 2021 comes to an end, the team at UN-SPIDER wants to take this chance to look back at some of our highlight activities during the year. Dominated by challenges provoked by the unprecedented COVID-19 crisis and its consequences, the world faced many challenges and will continue to do so in the next year and more years to come.

The Global Development Assistance Programme (GDA) of the European Space Agency (ESA) was started by ESA Member States at Space 19+ and has now officially kicked off its first action on Earth observation information development in the context of ‘Disaster Resilience’. The programme aims to improve the systematic integration of Earth observation data in development projects and has reach its first milestone by kicking of this action.

The UN Office for Disaster Risk Reduction (UNDRR), the United Nations Platform for Space-based Information for Disaster Management and Emergency Response (UN-SPIDER) from the United Nations Office for Outer Space Affairs (UNOOSA) and the World Meteorological Organization (WMO) invite partners and stakeholder to share good practices on lessons learned on Multi-hazard Early Warning Systems (MHEWS).