Climate

UC San Diego has added an innovative prerequisite to ‘prepare students for the future they really will encounter’

Melani Callicott, a human biology major at the University of California, San Diego, thinks about the climate crisis all the time. She discusses it with family and friends because of the intensity of hurricanes like Milton and Helene, which have ravaged the southern US, she says. “It just seems like it’s affecting more people every day.”

That’s one reason why she is glad that UC San Diego has implemented an innovative graduation requirement for students starting this autumn: a course in climate change. Courses must cover at least 30% climate-related content and address two of four areas, including scientific foundations, human impacts, mitigation strategies and project-based learning. About 7,000 students from the class of 2028 will be affected this year.

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These productions are grappling with climate change, reproductive rights, the Arab Spring and accusations of sexual assault.

Natural sinks of forests and peat were key to Finland’s ambitious target to be carbon neutral by 2035. But now, the land has started emitting more greenhouse gases than it stores

Read more: Trees and land absorbed almost no CO2 last year. Is nature’s carbon sink failing?

Tiina Sanila-Aikio cannot remember a summer this warm. The months of midnight sun around Inari, in Finnish Lapland, have been hot and dry. Conifer needles on the branch-tips are orange when they should be a deep green. The moss on the forest floor, usually swollen with water, has withered.

“I have spoken with many old reindeer herders who have never experienced the heat that we’ve had this summer. The sun keeps shining and it never rains,” says Sanila-Aikio, former president of the Finnish Sami parliament.

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A US study estimates the total climate pollution from LNG was 33% greater than that from coal over a 20-year period. This should have major ramifications for emissions policy

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The claim that Australian gas exports are “clean” and needed to drive the transition to net zero greenhouse gas emissions has become an article of faith for significant parts of the country’s industry, media and political classes – often repeated, only occasionally challenged.

It has buttressed a massive expansion of the liquified natural gas (LNG) industry in the north of the continent over the past decade, with major new developments in Queensland, Western Australia and the Northern Territory.

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Millions of Americans, many poor and vulnerable, live in mobile and manufactured homes. When catastrophe strikes, they’re often on their own.

Food is the springboard to talk about a host of issues, including climate, economic justice, public health and labor.

The sudden collapse of carbon sinks was not factored into climate models – and could rapidly accelerate global heating

It begins each day at nightfall. As the light disappears, billions of zooplankton, crustaceans and other marine organisms rise to the ocean surface to feed on microscopic algae, returning to the depths at sunrise. The waste from this frenzy – Earth’s largest migration of creatures – sinks to the ocean floor, removing millions of tonnes of carbon from the atmosphere each year.

This activity is one of thousands of natural processes that regulate the Earth’s climate. Together, the planet’s oceans, forests, soils and other natural carbon sinks absorb about half of all human emissions.

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New climate network will teach trainee doctors more about heatstroke, dengue and malaria and role of global warming in health

Mosquito-borne diseases such as dengue and malaria will become a bigger part of the curriculum at medical schools across Europe in the face of the climate crisis.

Future doctors will also have more training on how to recognise and treat heatstroke, and be expected to take the climate impact of treatments such as inhalers for asthma into account, medical school leaders said, announcing the formation of the European Network on Climate & Health Education (Enche).

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Former administration officials say Trump deliberately denied funds to states he deemed politically hostile

Donald Trump deliberately withheld disaster aid to states he deemed politically hostile to him as US president and will do so again unimpeded if he returns to the White House, several former Trump administration officials have warned.

As Hurricane Helene and then Hurricane Milton have ravaged much of the south-eastern US in the past two weeks, Trump has sought to pin blame upon Joe Biden’s administration for a ponderous response to the disasters, even suggesting that this was deliberate due to the number of Republican voters affected by the storms.

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Como escritor y artista me doy cuenta de que hay formas efectivas de transformar el modo en el que abordamos la emergencia climática.

The Iranian photographer reveals the dangers posed to fishermen and farmers by the polluted water in which he used to swim

The world’s largest enclosed body of water, the Caspian Sea, is surrounded by jeopardies. Declining water levels from global heating have been exacerbated by increasing levels of extraction from the Volga and the Ural, the Russian rivers that flow into it. Satellite photographs show the sea shrinking at a dramatic rate. And each year increasing levels of pollutants from the five coastal states that border the Caspian contaminate it with spills from growing numbers of oil and gas fields, and with industrial and domestic waste from expanding coastal towns and cities, a magnet for internal migration.

The Iranian photographer Khashayar Javanmardi grew up on the shores of the Caspian Sea in northern Iran and used to count the hours at school before he could return to swim in it. He has spent the past few years, however, documenting the environmental decline along its coastline.

Caspian: A Southern Reflection is published by Loose Joints (£44)

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We are losing in the fight against global warming, it is time to put effort into controlling what we pump into the atmosphere

The havoc unleashed by Hurricane Milton provided unambiguous evidence that we are entering a critical and alarming new phase in the planet’s climate crisis. Rising fossil fuel emissions have triggered increases in ocean temperatures and sea levels to such an extent they are generating some of the most destructive storms ever experienced in Florida. Together with Hurricane Helene earlier, the lives of about 250 people have been claimed and thousands of homes destroyed. Florida has been left reeling and forecasters have warned there is more to come – a lot more.

It is a grim prognosis that should be galvanising Florida’s political leaders into taking urgent action to protect the state. Extraordinarily, this has not been the case. Despite the intensification of hurricanes and worsening flooding over the past decade, governor Ron DeSantis has consistently rejected the idea that global warming poses a threat to Florida or that the phenomenon exists at all. A few weeks ago, he signed a law erasing the words “climate change” from state statutes and effectively pledged the state’s future to burning fossil fuels. Such behaviour is disturbing.

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Much of what’s still undeveloped offers some the best defenses against climate change.

A second Trump administration would be expected to shred climate polices. California officials are devising ways to insulate its environmental regulations.

While some embrace technological innovations, others are forced to close as global heating causes lack of snowfall

Sitting at his window in Västerås, central Sweden, Thomas Ohlander is wondering when the winter season might start for his outdoor adventure business, Do The North. “To schedule a trip we have to be sure of snow,” he says, “And that start date is going backwards at a crazy speed.”

Each year, Ohlander’s local ice-skating club has recorded the first date on which its members managed to get out on the frozen lakes. In 1988, that date was 4 November; this year the prediction is 4 December.

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Hurrican Milton, the Middle East crisis, forest fires in Brasília and the Northern Lights: the last seven days as captured by the world’s leading photojournalists

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Drone footage from 2 October shows how more than a year’s worth of rain fell in two days in September in south-east Morocco, filling up lakes that had been dry for decades

• Dramatic images show the first floods in the Sahara in half a century

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Greenhouse gas emissions added rain, intensified winds and doubled the storm’s potential property damage, scientists estimated.

Harris and White House criticize Donald Trump for attacks on federal response to Hurricanes Helene and Milton

• Tell us: how have you been affected by Hurricane Milton?

Hurricane Milton made landfall as a category 3 hurricane on Wednesday night at around 8.30pm near Siesta Key in Florida. For about eight hours, the storm brought intense rainfall, flooding, tornadoes, storm surge and strong winds before moving off over the ocean just north of Cape Canaveral as a category 1 hurricane.

Our visual team have put together this visual guide to the damage caused:

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More than year’s worth of rain fell in two days in south-east Morocco, filling up lake that had been dry for decades

Dramatic pictures have emerged of the first floods in the Sahara in half a century.

Two days of rainfall in September exceeded yearly averages in several areas of south-eastMorocco and caused a deluge, officials of the country’s meteorology agency said in early October. In Tagounite, a village about 450km(280 miles) south of the capital, Rabat, more than 100mm (3.9 inches) was recorded in a 24-hour period.

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