NASA maps a week of Canadian wildfire smoke across North America
A new NASA model visualization traces brown-carbon smoke from July 14 through July 20 as unhealthy air spread through major U.S. and Canadian cities.
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A new NASA model visualization traces brown-carbon smoke from July 14 through July 20 as unhealthy air spread through major U.S. and Canadian cities.

A market drop has spread beyond Wall Street: Asian shares mostly fell on Oct. 23 as investors weighed AI spending needs, while Brent touched a five-month high. Taiwan’s market was closed for Typhoon Champi.
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10 stories in this desk.The central bank lifted its benchmark to 5.50%, a larger move than economists had broadly expected, as inflation and peso pressures persist.
South Korea’s central bank kept its policy rate at 3% on Oct. 22, pausing after increases in July and August.
Bank Indonesia says September reserves remained well above the international adequacy benchmark despite debt repayments and rupiah-stabilization operations.
Daily card payments averaged about 3.8 trillion won in the first half of 2026, with mobile and other cardless transactions continuing to gain ground.
Nigeria's central bank has reduced its benchmark monetary policy rate from 26.5% to 23%, according to reports from the Monetary Policy Committee's latest meeting.
Perry Warjiyo resigned for personal reasons before completing his second term, and Senior Deputy Governor Destry Damayanti is serving as acting governor.
The KOSPI closed 10.8% lower after the Korea Exchange activated a market-wide circuit breaker, while technology shares also fell sharply in Japan and Taiwan.
New federal estimates put the U.S. direct-investment position abroad at $7.14 trillion and foreign direct investment in the United States at $5.86 trillion at the end of 2025.
Semiconductor shares recorded their worst week in more than a year, adding a new test for the AI-led market rally as oil prices stayed elevated.
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