Rising Droughts Threaten Agriculture, Energy, and Ecosystems Worldwide
Extreme droughts lasting several years have become increasingly frequent and severe over the past four decades, leading to significant disruptions in agriculture, energy production, and natural ecosystems. These prolonged dry periods have covered larger areas each year, as highlighted by recent meteorological assessments. The findings underscore the rising threats posed by climate change, with regions like northern Chile enduring a 14-year drought and southern Australia and parts of the United States also experiencing extensive dry spells. This intensification of droughts presents a growing challenge for environmental and economic sustainability worldwide.
Drought Trends and Contributing Factors
According to a study published in Science by the Swiss Federal Institute for Forest, Snow and Landscape Research, drought-affected areas have expanded by 50,000 square kilometres annually since 1979. This change is attributed to increased temperatures and shifting precipitation patterns. As reported by WSL News, Lead researcher Dirk Karger,, has emphasised that multi-year droughts inflict substantial economic losses, particularly in agriculture and power generation, as reported by WSL News. The study also analyzed vegetation changes during these events using satellite data, revealing that grasslands show quick recovery, while forests may face prolonged damage due to severe water shortages.
Ecological and Global Impacts
Observations detailed in the study suggest that tropical forests and colder-climate woodlands exhibit some resilience to short-term droughts but suffer irreversible effects under extreme conditions. Field evaluations in Chile’s Aconcagua region have revealed abandoned farmland and damaged plantations. Postdoctoral researcher Liangzhi Chen from WSL described the drought inventory, developed using high-resolution CHELSA climate data, as the most detailed compilation of drought events over the last 40 years. Philipp Brun, a co-author of the study, has pointed to rising global temperatures as a key factor exacerbating these droughts by increasing evaporation rates and altering rainfall distribution.
The research provides crucial insights for policymakers and environmental planners to prepare for and mitigate the effects of long-term droughts in vulnerable regions.
For the latest tech news and reviews, follow Gadgets 360 on X, Facebook, WhatsApp, Threads and Google News. For the latest videos on gadgets and tech, subscribe to our YouTube channel. If you want to know everything about top influencers, follow our in-house Who’sThat360 on Instagram and YouTube.
Related Stories
A volcanic fissure has emerged near Grindavík on Iceland’s Reykjanes Peninsula after a series of strong earthquakes. Lava has breached the town’s defence barriers. The Icelandic Meteorological Office (IMO) has warned that the fissure may continue to expand. The eruption began along the Sundhnúkur crater row early in the morning. By 9:45 a.m. local time, a fissure stretching nearly 1,200 metres had opened north of Grindavík. The crack is moving southward. Officials have raised the hazard level to the highest risk category.
Evacuations and Road Closures
According to the IMO, a second fissure has appeared inside Grindavík’s protective barriers. Authorities have evacuated the town along with the Blue Lagoon spa. Roads in and out of the area have been shut. Some residents have refused to leave. Local media outlet Visir has reported that emergency services remain on high alert.
Impact of Volcanic Gas
Weather forecasts indicate that volcanic gas will be carried northeastward towards Reykjavík. The capital is located about 40 kilometres away. The IMO has stated that by tomorrow morning, changing wind patterns may direct the gas southwest and eastward. Residents have been told to remain indoors as much as possible while closely monitoring air quality updates. Reykjanes Peninsula has experienced about 11 eruptions since 2021. Eight have occurred along the Sundhnúkur crater row since last year. Scientists continue to monitor the situation closely. Authorities have urged people to avoid the affected region.
For the latest tech news and reviews, follow Gadgets 360 on X, Facebook, WhatsApp, Threads and Google News. For the latest videos on gadgets and tech, subscribe to our YouTube channel. If you want to know everything about top influencers, follow our in-house Who’sThat360 on Instagram and YouTube.
Related Stories
Astronomers have released new images of planets within the HR 8799 and 51 Eridani star systems. The James Webb Space Telescope (JWST) was used in a way that was different from standard procedures to achieve these results. Capturing direct images of exoplanets is challenging due to the brightness of host stars, which often obscures planetary details. To allow more light through, researchers adjusted JWST’s coronagraphs. This helps in enhancing the visibility of these distant worlds. This adjustment provided clearer insights into planetary atmospheres and their compositions.
Unconventional Use of JWST’s Coronagraphs
According to a study published in The Astrophysical Journal Letters, lead author William Balmer, a Ph.D. candidate at Johns Hopkins University, explained to Space.com that a thinner part of the coronagraph mask was used. This allowed more starlight to diffract, reducing the risk of completely obscuring planets. Coronagraphs typically block starlight to reveal faint celestial bodies, but this modification provided a balance between removing excessive glare and preserving planetary details.
Key Discoveries and Observations
The JWST’s mid-infrared imaging captured HR 8799 at 4.6 microns. It is a wavelength that is mainly blocked by Earth’s atmosphere. Balmer stated that previous ground-based attempts had failed, demonstrating JWST’s stability in detecting exoplanets. Observations at 4.3 microns were also conducted. This revealed the presence of carbon dioxide. It is a very important step in determining the planetary formation processes. The detected carbon dioxide levels suggested that these planets likely formed through core accretion, gathering heavy elements over time.
Future Research and Expanding Studies
There are many research planned to study the four additional planetary systems. Balmer’s team has been allocated more JWST observation time to confirm whether similar gas giants formed through core accretion. This could offer more insights into the stability of planetary systems and potential habitability of smaller, unseen planets.
For the latest tech news and reviews, follow Gadgets 360 on X, Facebook, WhatsApp, Threads and Google News. For the latest videos on gadgets and tech, subscribe to our YouTube channel. If you want to know everything about top influencers, follow our in-house Who’sThat360 on Instagram and YouTube.
Related Stories
-
Sports2 years ago‘Storybook stuff’: Inside the night Bryce Harper sent the Phillies to the World Series
-
Sports12 months agoStory injured on diving stop, exits Red Sox game
-
Sports1 year agoGame 1 of WS least-watched in recorded history
-
Sports2 years agoMLB Rank 2023: Ranking baseball’s top 100 players
-
Sports4 years ago
Team Europe easily wins 4th straight Laver Cup
-
Environment2 years agoJapan and South Korea have a lot at stake in a free and open South China Sea
-
Environment2 years agoGame-changing Lectric XPedition launched as affordable electric cargo bike
-
Business3 years agoBank of England’s extraordinary response to government policy is almost unthinkable | Ed Conway