|
|
|
Sri Lanka
U.S. Sub Sinks Iranian Warship
In a first for the United States navy since World War II, an American submarine sank an enemy boat by torpedo off the coast of Sri Lanka on Wednesday. The Iranian frigate, the IRIS Dena, had been invited by the Indian Defense Ministry to participate in multilateral exercises with 74 other countries but was heading home in international waters when the sub brought it down, killing at least 87 crew members. The Sri Lankan navy rescued another 32 following the attack. The Dena was one of the Iranian navy’s newest and most powerful warships, with surface-to-air missiles, anti-ship missiles, and torpedoes. The Sri Lankan navy is now taking control of another Iranian vessel, the IRIS Bushehr, which is currently in its waters and issued a distress call, reporting engine failure. Both India and Sri Lanka are neutral states amidst the conflict between the United States and Iran, and maritime law requires even attacking ships to render aid to sailors in distress.
This map depicts the location where a United States submarine sank an Iranian warship in international waters off the coast of Sri Lanka. Click on the map to learn more.
|
|
|
|
Graphic Source: Bloomberg
__________________________________________
|
|
|
|
Azerbaijan
Tensions Rise After Drone Attack
Azerbaijan said on Friday it was withdrawing diplomatic staff from neighboring Iran, a day after Iranian drones targeted an airport and a school in an Azerbaijani border region. The border incident sparked fears of the Middle East war spilling over into the Caucasus region, with Tehran blaming Israel, Azerbaijan’s ally, of staging a provocation. Thursday’s attacks involved at least four drones that crossed from Iran into Azerbaijan’s exclave of Nakhchivan, bordering Iran. One hit the airport and another exploded near a school, Baku said. Four people were wounded. Azerbaijan President Ilham Aliyev accused Iran of “terrorism” and threatened retaliation. Iran has long expressed concern that Israel, a close ally of Azerbaijan and a key arms supplier, could use Azerbaijani territory to stage attacks. Tehran has historically been wary of separatist sentiment among its ethnic Azerbaijani minority, which makes up around 10 million of Iran’s 83 million citizens.
This map depicts the location of the Nakhchivan Airport in Azerbaijan. Click on the map to learn more.
|
|
|
|
Graphic Source: OC Media
__________________________________________
|
|
|
|
United States
Bird Losses in Farming Regions
A new study in Science by researchers from the Ohio State University shows that the rate of bird population loss across North America has been increasing since the mid-1980s. Analyzing 1,033 Breeding Bird Survey routes from 1987 to 2021, the team found 47% of species in significant decline, with 63 species showing accelerated losses. Only a small area north of the U.S.–Canadian border recorded increases, while the continent-wide average abundance dropped 15% per route over 35 years. The strongest predictor of accelerated bird declines was agricultural intensity, including cropland extent, pesticide use, and fertilizer application. Hotspots were concentrated in the Midwest, California, and the Mid-Atlantic, areas where row-crop farming and chemical inputs have intensified in recent decades. These practices impact birds through reduced insect prey, loss of breeding habitat, and degraded wetlands, though direct chemical-level causation remains to be confirmed. Scientists warn that these trends are an early indicator of wider environmental stress.
This map depicts (A and B) total changes in bird abundance per route from 1987 to 2021 (ΔN), and (C and D) temporal change of growth rate (Δg), after correcting for imperfect detection. Click on the map to learn more.
|
|
|
|
|
|
Q: What is the mountain range which divides the North Sea and Black Sea watersheds?
A: Bohemian Forest
The Bohemian Forest, known in Czech as Šumava and in German as Böhmerwald, is the forested southwestern highlands of the Bohemian Massif of Central Europe. They create a natural border between the Czech Republic on one side and Austria and Germany on the other. The Bohemian Forest comprises heavily forested mountains with average heights of 2,624 to 3,280 feet (800 to 1,400 meters). The Bohemian Forest is the dividing range between the watersheds of the Black Sea and the North Sea, where water collected by the Vltava, Otava, and Úhlava rivers flows. These rivers all spring from the Bohemian Forest. The Bohemian Forest acts as a, high-altitude boundary where rivers like the Vltava drain north, while others drain south toward the Danube. Owing to heavy precipitation (mostly snow), peat bogs, and Lipno Dam, the Šumava region is an important water reservoir for Central Europe.
Source
|
|
|
|
|
Q: What body of water is home to “Null Island,” the intersection of the Equator and the Prime Meridian?
Stay tuned for the answer to today’s question in Monday’s DailyGeo.
|
|
|
|
|
AGS is accepting DailyGeo GeoQuestion suggestions.
Write to ags@americangeo.org with any ideas!
Please include GeoQuestions in the subject line, along with your answer and source.
|
|
|
|
DailyGeo is an outreach effort of the American Geographical Society (AGS) to highlight the importance of geography and geospatial understanding in our day-to-day lives and the pressing issues of the day. AGS intiatives advance geographical education for everyone from high school students to seasoned professionals in the geospatial world, and that work is made possible from the financial support of people like you. If you enjoy DailyGeo and want to help AGS advance geographical learning for future generations, please consider making a donation.
|
|
|
|
DailyGeo is a daily digital communication created by the American Geographical Society (AGS) for the geography community. If you are receiving this email, it is because you are an affiliate of AGS or a participant in one of our programs. Feel free to share and encourage others to become part of the community too!
Copyright © 2026 American Geographical Society, All rights reserved.
We understand this might not be for everyone. Although we would hate to see you go, you can unsubscribe here.
How are we doing? We want to hear your feedback on the DailyGeo – what are we doing right and what should we be doing differently. Talk to us by emailing ags@americangeo.org.
|
|
|
|
|
