U.S. carries out new strike against alleged drug vessel near Venezuela
The United States killed four people in a strike against a vessel allegedly carrying illegal drugs just off the coast of Venezuela, U.S. Defence Secre...
Scientists have detected DNA from an invasive barnacle species in Canada's Arctic, raising alarm over the loss of the region's natural defence against ecological threats.
A recent study published in Global Change Biology by researchers from the British Antarctic Survey (BAS) reveals the first recorded presence of a non-native barnacle in Arctic Canadian waters. The species, identified as Amphibalanus improvisus or bay barnacle, was found using environmental DNA (eDNA) metabarcoding, which allows scientists to analyse water samples for genetic traces left by marine organisms.
This discovery suggests that the Arctic is no longer a reliable thermal barrier against biological invasions. As climate change warms the region nearly four times faster than the global average, the once-hostile waters are becoming increasingly hospitable to invasive species.
The bay barnacle, already common in European and Pacific marine environments, poses significant ecological risks. It can cause biofouling on ships, pipelines, and coastal infrastructure, while also displacing native species. It's likely introduction route into the Arctic is via increased shipping traffic, either through ballast water or hull attachment.
Since 1990, shipping in Canada's Arctic has surged by over 250 percent, driven largely by diminishing sea ice. This rising marine traffic, combined with warmer waters, creates favourable conditions for invasive species to survive and establish populations.
Elizabeth Boyse, the study’s lead author and a BAS ecologist, said the findings highlight how climate change is central to this growing threat. “Ships are increasing in number because of reduced sea ice, opening new shipping routes. Add to this, the invasive species that the ships bring to the Arctic are also more likely to survive and establish populations because of warmer water temperatures,” she said.
The research underscores growing concerns about how rapid Arctic warming could trigger long-term ecological disruption far beyond the region.
Video from the USGS (United States Geological Survey) showed on Friday (19 September) the Kilauea volcano in Hawaii erupting and spewing lava.
At least eight people have died and more than 90 others were injured following a catastrophic gas tanker explosion on a major highway in Mexico City’s Iztapalapa district on Wednesday, authorities confirmed.
At least 69 people have died and almost 150 injured following a powerful 6.9-magnitude earthquake off the coast of Cebu City in the central Visayas region of the Philippines, officials said, making it one of the country’s deadliest disasters this year.
A powerful 7.4-magnitude earthquake struck off Russia’s Kamchatka Peninsula on 13 September with no tsunami threat, coming just weeks after the region endured a devastating 8.8-magnitude quake — the strongest since 1952.
Authorities in California have identified the dismembered body discovered in a Tesla registered to singer D4vd as 15-year-old Celeste Rivas Hernandez, who had been missing from Lake Elsinore since April 2024.
On the second day of Baku Climate Action Week (BCAW), attention centred on strengthening international cooperation, accelerating the transition to clean energy, and ensuring a fair and inclusive approach.
Super Typhoon Ragasa lashed Hong Kong with hurricane-force winds and torrential rain on Wednesday.
When Climate Week kicks off in New York City on Sunday (21 September), it will mark the largest event of its kind yet, with organisers reporting a record number of companies participating and more events than ever before.
Rising temperatures are taking a mounting toll on Bangladesh, with heat-related illnesses and productivity losses costing the economy up to $1.78 billion - about 0.4% of GDP - in 2024, according to a World Bank report released Tuesday
You can download the AnewZ application from Play Store and the App Store.
What is your opinion on this topic?
Leave the first comment