Foul Smell Hits Karachi

A foul smell has been reported in Karachi, particularly in coastal areas, due to the decomposition of microscopic marine algae called phytoplankton. The smell is also attributed to the current weather conditions, including a low-pressure area off the coast of India's Jamnagar.

The phytoplankton are found in the upper 100 metres of the sea, where sunlight can penetrate, and are not visible to the naked eye. According to experts, the combination of smog and weather conditions is causing the smell to circulate throughout the city.

The Pakistan Meteorological Department's spokesperson, Anjum Nazir Zaigham, and climate change expert Fatima Yamin attributed the scale of the smell to the weather conditions. Yamin explained that the low-pressure area off the coast of India's Jamnagar is circulating wind around Karachi's coastline, which is turning into smog due to air pollution.

The event is a naturally occurring phenomenon that has been witnessed before, including in 2024. The smell is expected to dissipate in a few days, with the air expected to get better by the evening with the sea breeze.

## Why it matters The foul smell in Karachi is not just a nuisance, but also a reminder of the city's vulnerability to environmental changes. The combination of natural phenomena like phytoplankton decomposition and weather conditions, along with air pollution, can have significant impacts on the city's air quality and residents' health. As the city's population continues to grow, it is essential to monitor and address environmental issues to ensure a healthy and sustainable living environment.

The smell is expected to dissipate soon, but it highlights the need for continued efforts to reduce air pollution and mitigate the effects of climate change in Karachi.