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Joe Wertz

Weather & Climate Reporter

Joe Wertz is a reporter for Bloomberg News in London covering weather and climate. He was previously a journalist at Colorado Public Radio, the Center for Public Integrity and NPR's StateImpact Oklahoma project.

Latest

NYC Snow

Booming Weather Prediction Markets Could Improve Forecasting

Increasingly popular prediction markets like Kalshi and Polymarket may improve forecasting by aggregating knowledge

April 13, 2026

April 13, 2026

Booming Weather Prediction Markets Could Improve Forecasting

Increasingly popular prediction markets like Kalshi and Polymarket may improve forecasting by aggregating knowledge

NYC Snow

April 10, 2026

April 10, 2026

Weather Prediction Markets Are Booming. Can They Improve Forecasts?

From Kalshi and Polymarket to niche scientific platforms, traders are predicting the weather — and climate experts are debating the results.

Weather Prediction Markets Are Booming. Can They Improve Forecasts?

April 2, 2026

April 2, 2026

Dry Winter Saps Norway’s Hydropower Potential

The country acts as Europe’s battery, but it doesn’t have enough charge after below-normal snowfall.

Dry Winter Saps Norway’s Hydropower Potential

April 2, 2026

April 2, 2026

A Winter Without Snow Depletes Europe’s Clean Energy Reservoir

Hydropower, a key export from Norway, is being tested by the country’s driest winter in years, pushing electricity prices higher.

A Winter Without Snow Depletes Europe’s Clean Energy Reservoir

April 1, 2026

April 1, 2026

Europe Braces for Wild Weather and Cold Snaps Through April

A frost-covered leaf in Heidelberg, southwestern Germany.

March 26, 2026

March 26, 2026

Energy Traders Turn to AI to Forecast the Weather Forecast

Cold weather in Leipzig, Germany.

March 24, 2026

March 24, 2026

England Sees Drought Risk Dwindle After Months of Heavy Rain

Heavy Rain From Storm Jorge Bring Flooding Along The River Severn

March 20, 2026

March 20, 2026

Solar Storms Pose Risks to Under-Prepared UK, Watchdog Says

A solar flare on Feb. 4.

March 12, 2026

March 12, 2026

Heat Wave Shatters March Temperature Records in Cape Town

Weather

March 9, 2026

March 9, 2026

Dust Storms and Blistering Summer Heat Add to Iran War Calculus

Even with satellites, advanced sensors and artificial intelligence, the weather can still determine the timing of military operations.

IRAN-WEATHER-DUST

March 6, 2026

March 6, 2026

Global Warming Has Significantly Accelerated

Also: what happens to FEMA after Kristi Noem?

TOPSHOT-CHILE-ENVIRONMENT-CLIMATE-FIRE

March 6, 2026

March 6, 2026

Germany’s Solar Boom Eases Power Costs as Gas Price Jumps

A floating solar farm in eastern Germany.

March 2, 2026

March 2, 2026

Unusual Winter Weather Loop Creates Chaos Across Europe

A series of cold air bursts in the US revved up the jet stream, rerouting the Atlantic Ocean’s moisture superhighway squarely at the continent.

A flooded street in Guichen Pont-Rean, western France, on Jan. 29.

February 24, 2026

February 24, 2026

French Power Prices Drop to Lowest Since June as Solar Surges

Solar panel installation in France.

February 23, 2026

February 23, 2026

Climate Activists Deploy New Tactics Against Wall Street

Also: the latest on the blizzard pummeling New York City

Citi’s Manhattan Staff Are Now No. 1 Target in ‘Summer of Heat’

February 22, 2026

February 22, 2026

NYC Isolated by Snowstorm as Thousands of Flights Canceled

US-WEATHER-SNOWSTORM

February 16, 2026

February 16, 2026

Energy Traders Struggle to Nail Down Polar Vortex Forecasts

As gas stockpiles dwindle toward the end of winter, traders are betting on shifts in the polar vortex, but accurate long-term forecasts of cold weather remain a challenge.

Ice on Lake Constance in Germany, in February 2018.

February 12, 2026

February 12, 2026

Storm Nils Hits Western Europe With Power Outages and Floods

'Storm Leonardo' Brings Heavy Flooding To Portugal

February 9, 2026

February 9, 2026

Nordic Power Prices Jump to Highest Since Energy Crisis in 2022

Electricity towers.

February 2, 2026

February 2, 2026

Winter Olympics Host Italy Fires Up Snow Cannons for Alpine Skiers

Artificial snow has become an essential insurance policy for ski resorts worldwide as global warming shortens winter seasons and makes conditions increasingly unpredictable.

TechnoAlpin snow cannons in Livigno, Italy.