Increasing Frequency of Multi-Year Droughts Worldwide
Multi-year droughts (MYDs) are increasingly common and severe, as brought into light by a recent 40-year study. The research indicates that these droughts have expanded globally, impacting ecosystems and water supplies. This trend is linked to climate change, which exacerbates drought conditions. The study, conducted by a consortium of researchers from various institutions, analysed data from 1980 to 2018. About Multi-Year DroughtsMulti-year droughts are prolonged dry periods lasting two years or more. These events lead to soil moisture depletion. They also result in reduced streamflow, which can have severe consequences for agriculture and ecosystems. MYDs can cause massive crop failures and increased tree mortality. The study identified 13,176 MYDs from 1980 to 2018, each representing an event of duration. Global Impact of Droughts The research showed that the global land area affected by MYDs has increased by approximately 50,000 square kilometres annually. The most affected r...