Bericht der Weltorganisation für Meteorologie, 19.4.2021 (engl. Originalfassung)
In 2020, COVID-19 added a new and unwelcome dimension to weather, climate and water-related hazards, with wide-ranging combined impacts on human health and well-beingaccording to a new report compiled by the World Meteorological Organization (WMO) and an extensive network of partners. Mobility restrictions, economic downturns and disruptions to the agricultural sector exacerbated the effects of extreme weather and climate events along the entire food supply chain, elevating levels of food insecurity and slowing the delivery of humanitarian assistance. The pandemic also disrupted weather observations and complicated disaster risk reduction efforts.
The report on the State of the Global Climate 2020 documents indicators of the climate system, including greenhouse gas concentrations, increasing land and ocean temperatures, sea level rise, melting ice and glacier retreat and extreme weather. It also highlights impacts on socio-economic development, migration and displacement, food security and land and marine ecosystems.
The report illustrates how climate change poses a risk to the achievement of many of the Sustainable Development Goals, through a cascading chain of interrelated events. These can contribute to reinforcing or worsening existing inequalities. In addition, there is the potential for feedback loops which threaten to perpetuate the vicious cycle of climate change.
“All key climate indicators and associated impact information provided in this report highlight relentless, continuing climate change, an increasing occurrence and intensification of extreme events, and severe losses and damage, affecting people, societies and economies. The negative trend in climate will continue for the coming decades independent of our success in mitigation. It is therefore important to invest in adaptation. One of the most powerful ways to adapt is to invest in early warning services and weather observing networks. Several less developed countries have major gaps in their observing systems and are lacking state of the art weather, climate and water services.” said WMO Secretary-General Prof. Petteri Taalas.
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