Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Pakistan and India floods
EXTREME WEATHER: Heavy flooding forced half a million people to evacuate their homes in just 24 hours in Pakistan’s Punjab this week, the Associated Press reported. It brings the total number of people displaced since last month to 1.8 million, the newswire said. According to Arab News, at least 41 people have died as a result of the flooding since last week. The flooding has also destroyed thousands of acres of crops in Punjab, a province that accounts for 68% of Pakistan’s total annual food grain production, Bloomberg reported.
CROSS-BORDER EVENT: Meanwhile, in Indian Punjab, “at least 30 people have died and more than 354,000 have been affected” by flooding, BBC News reported. India also warned Pakistan about more cross-border flooding for the second time in as many weeks, as both countries reeled from monsoon rains, the Associated Press reported.
UK dividing lines
NEW FACE: Zack Polanski has been elected as the new leader of the Green Party of England and Wales in a landslide victory, the Financial Times reported. Polanski is an “outspoken campaigner who has argued his party needs to ‘connect with people’s anger’ and become more combative against ‘villains’, including oil major Shell and the ‘super-rich’”, the newspaper said. Polanksi wants to “replace” the ruling Labour party on a platform of “eco-populism”, according to BBC News.
NORTH SEA OIL: Meanwhile, the UK Conservative leader Kemi Badenoch pledged to drill “all” of the remaining oil and gas in the North Sea if elected, BBC News reported. [The Conservatives are polling third, at 17%.] In response to the speech, the Daily Telegraph‘s world economy editor Ambrose Evans-Pritchard argued that Badenoch’s plan would not “raise this country’s long-term output of oil and gas by more than homeopathic amounts” nor “move the needle on UK energy prices” (more below).
Around the world
- HIGHER AMBITIONS: The UN urged countries to set new, more ambitious national climate plans this month, ahead of this year’s COP30 summit in Belém, Brazil, Reuters reported.
- ‘JUNK SCIENCE’: A group of more than 85 climate scientists released a “scathing review” of the Trump administration’s misleading climate report, DeSmog reported.
- FOSSIL ENERGY: Russia said China had agreed to a massive new pipeline capable of importing as much as 50bn cubic metres of gas a year, the Financial Times reported.
- US PRESSURE: Reuters reported that the US is pressuring other countries to reject a UN deal on cutting emissions from shipping by threatening them with tariffs, visa restrictions and port levies.
- SWELTERING HEAT: Authorities in Japan and South Korea said 2025 was the hottest summer in their countries since records began, Al Jazeera reported.
- MITIGATION WORK: According to Bloomberg, Zimbabwe has published draft regulations to establish a National Climate Fund. The fund will finance projects “aimed at mitigating the impact of climate change and respond[ing] to emergencies”.
20%
The amount by which clean-energy production has surged in India this year, according to Reuters, citing data from the thinktank Ember.
Latest climate research
- “Extreme cold surges” have “robustly weakened in middle-to-high latitude continents during autumn and winter” due to climate change, according to a study in Nature Communications.
- A study published in npj Climate Action found that exposing people to moral appeals results in overall carbon footprint reduction and increased participation in civic and political climate action, regardless of ideological affiliation.
- The World Bank’s increase in climate finance spending since the Paris Agreement has been driven by projects with “low climate components”, according to a study in Climatic Change.
(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)
Captured

A claim that gas produced in the North Sea emits “four times” less CO2 than imported liquified natural gas (LNG) featured prominently in both the Guardian and the Daily Telegraph this week, following Badenoch’s pledge to drill “all” the remaining oil and gas in the UK. However, this figure is highly misleading. It only refers to the emissions that come from the process of extracting and delivering the gas, which are much smaller than those from burning it. When both extraction and burning of the gas are taken into account, CO2 emissions from UK production are only around 15% lower than those from LNG imports, according to a new factcheck from Carbon Brief.
Spotlight
A man-made lake threatened by climate change
This week, Carbon Brief reports on how climate change is impacting the sustainability of a scenic nature reserve in the southern US.
In 1941, as World War 2 thickened, the US Congress approved a plan to construct a reservoir storage project on the Hiwassee River, a water body that cuts across the states of Georgia, North Carolina and Tennessee.
The dam, which came to be known as Chatuge after an 18th-century Cherokee village, was originally built for power generation purposes. However, after it was completed, it became more than a hydroelectric project.
In May 1942, the Towns County Lions Club started stocking fish in the newly created Lake Chatuge. In 1944, Clay County leased a tract of land for a public park.
Today, the park offers “scenic mountain views” and “panoramic views” of Lake Chatuge. The lake is also home to rare, endangered plant species and is an important source of drinking water.
However, Lake Chatuge’s future has been plunged into uncertainty after the Tennessee Valley Authority proposed a plan to repair the dam’s spillway, which could involve draining the lake’s water levels by 20 feet (6m) for up to eight years.
The TVA’s action is largely forward-thinking. While the dam and its spillway are in good condition, the public utility company is wary of extreme weather events made more likely by climate change.
In September 2024, Hurricane Helene tore through parts of Georgia and North Carolina, leaving more than 128 people dead across the US and uprooting communities in its wake. One analysis estimated that 44% of the economic damage from the storm can be attributed to human-caused climate change.

The Lake Chatuge area was largely spared, but officials worry that the next extreme weather event may not be far off.
“It’s the kind of event – the unusual storm event that can happen, that’s pretty rare – is what we’re looking out for,” a TVA project manager has said.
Meanwhile, aside from the imminent repairs made more likely by the increased possibility of extreme weather events, Lake Chatuge is also battling a parrot feather infestation, a phenomenon involving the spread of an invasive plant that has been linked to global warming in other parts of the US.
Saving Lake Chatuge
The threat posed by climate change to Lake Chatuge is not an isolated case. A July 2025 report by researchers at Utah State University found that climate change is affecting the social benefits of dams across the country.
Elsewhere in the world, the impact of extreme weather on ageing dams is wide ranging, including recently heightening tensions between India and Pakistan.
However, community members in the Lake Chatuge area are not giving up easily. A Facebook group dedicated to saving the lake has more than 2,000 members.
“Lake Chatuge is our economy,” Towns County’s sole commissioner, Cliff Bradshaw, told Carbon Brief. He added:
“The main attraction to this area is Lake Chatuge. Without the lake, the county’s tourism would drop, and our economy would suffer greatly – could even drive the county into a depression – as we have a great deal of businesses that rely solely on activities on Lake Chatuge for their customers, such as marinas, party boats and water activity playgrounds. The other businesses in town may not rely on the lake for customers, but do rely on the tourist traffic brought into the area by the lake to drive customers into their place of business.”
According to reporting by the Atlanta-Journal Constitution, visitors have spent up to $100m annually in the area since 2021.
The TVA’s repair work could begin as soon as 2027, but community members are asking both the public utility company and political leaders to help find the least damaging pathway.
Watch, read, listen
SCIENCE CUTS: The Financial Times reported on how the Trump administration has “gutted” the Federal Emergency Management Agency (Fema), throwing into doubt the nation’s ability to respond to extreme weather disasters.
SUSTAINABLE ECONOMICS: In an interview with Le Monde, the French economist Thomas Piketty argued that protecting the planet from climate change requires wealth redistribution.
TWEAKING NATURE: A Havard atmospheric chemist and an Oxford planetary physicist discussed the nuances and subtleties of geoengineering on the podcast Entanglements by Undark.
Coming up
- 8 September: Norway election
- 8-12 September: 54th Pacific Islands Forum Leaders Meeting, Honoraria, Solomon Islands
- 9-23 September: 80th Session of the UN General Assembly, New York
Pick of the jobs
- Energy UK, policy manager | Salary: £38,450. Location: London
- CNN Digital, climate and weather editor | Salary: $91,000-$169,000. Location: Atlanta, Washington DC, New York, Chicago or Burbank, California
- The Post and Courier, rising waters reporter | Salary: Unknown. Location: South Carolina, US
- The Seattle Times, climate reporter | Salary: $75,000-$90,000. Location: Seattle, US
DeBriefed is edited by Daisy Dunne. Please send any tips or feedback to debriefed@carbonbrief.org.
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The post DeBriefed 5 September 2025: Pakistan floods hit 1.8m people; UK ‘eco-populism’; How warming threatens a man-made lake appeared first on Carbon Brief.
Climate Change
Brazil’s Lula requests national roadmap for fossil fuel transition
Brazil’s President Luiz Inácio Lula da Silva has asked his government to draft by February guidelines for a national roadmap to transition away from fossil fuels, an idea he championed during COP30.
In a directive issued on Monday, the Brazilian leader requested the ministries of finance, energy and environment, together with the chief of staff’s office, to come up with a proposal for a roadmap to a “just and planned energy transition” that would lead to the “gradual reduction of the country’s dependence on fossil fuels”.
The order also calls for the creation of financial mechanisms to support a roadmap, including an “Energy Transition Fund” that would be financed with government revenues from oil and gas exploration.
The guidelines, due in 60 days, will be delivered “as a priority” to Brazil’s National Energy Policy Council, which will use them to craft an official fossil fuel transition roadmap.
At the COP30 climate summit in Brazil, President Lula and Environment Minister Marina Silva called on countries to agree a process leading to an international roadmap for the transition away from fossil fuels, after Silva argued earlier in June that “the worst possible thing would be for us to not plan for this transition”.
Yet, to the disappointment of more than 80 countries, the proposal for a global roadmap did not make it into the final Belém agreement as other nations that are heavily reliant on fossil fuel production resisted the idea. Draft compromise language that would have offered countries support to produce national roadmaps was axed.
Brazil seeks to set an example
Instead, Brazil’s COP30 president said he would work with governments and industry on a voluntary initiative to produce such a roadmap by next year’s UN climate summit, while a group of some 25 countries backed a conference to discuss a just transition away from coal, oil and gas that will be hosted by Colombia and the Netherlands in April 2026.
Experts at Observatório do Clima, a network of 130 Brazilian climate NGOs, welcomed Lula’s subsequent order for a national roadmap and said in a statement it sends signals abroad that Brazil is “doing its homework”.
“President Lula seems to be taking the roadmap proposal seriously,” said Cláudio Angelo, international policy coordinator at Observatório do Clima. “If Brazil – a developing country and the world’s eighth-largest oil producer – demonstrates that it is willing to practice what it preaches, it becomes harder for other countries to allege difficulties.”
The Amazon rainforest emerges as the new global oil frontier
Brazil is one of a number of countries planning a major expansion of oil and gas extraction in the coming decade, according to the Production Gap report put together by think-tanks and NGOs. Much of the exploration is set to take place offshore near the Amazon basin, which is poised to become a new frontier for fossil fuel development.
Significant funding needed
Natalie Unterstell, president of the Brazilian climate nonprofit Talanoa Institute and a member of Lula’s Council for Sustainable Social Economic Development, welcomed the national roadmap proposal in a post on LinkedIn, but emphasised it must tackle Brazil’s goal of becoming the world’s fourth largest oil producer by 2030.
Another key question is whether the Energy Transition Fund it envisages will be large enough to catalyse a real shift over to clean energy, she added. “Small and fragmented tools won’t move the dial,” she wrote.
Some Brazilian states have tested a model similar to the proposal for a national Energy Transition Fund. In the oil-producing state of Espirito Santo, for example, a percentage of the state government’s oil revenues go to a sovereign fund that invests in renewable energy, energy efficiency projects and substitution of fossil fuels with less polluting alternatives.
Colombia seeks to speed up a “just” fossil fuel phase-out with first global conference
Andreas Sieber, associate director for policy at campaign group 350.org, said a meaningful roadmap for Brazil would need to secure “adequate, fair and transparent financing to make the transition real on the ground”.
He also called for “a truly participatory process – involving scientists, civil society, workers whose livelihoods are at stake, and frontline and traditional communities whose rights must be upheld – while ensuring that those with vested fossil fuel interests do not shape the outcome”.
The post Brazil’s Lula requests national roadmap for fossil fuel transition appeared first on Climate Home News.
Brazil’s Lula requests national roadmap for fossil fuel transition
Climate Change
Environmental Groups Demand a Nationwide Freeze on Data Center Construction
In a letter to Congress, the groups said data center development raises concerns about rising energy costs, water use and climate impacts. Many communities are fighting back.
More than 200 environmental organizations signed a letter to Congress supporting a national moratorium on the approval and construction of new data centers. The letter, sent Monday, highlights these centers’ impacts on water resources, electricity rates and greenhouse gas emissions.
Environmental Groups Demand a Nationwide Freeze on Data Center Construction
Climate Change
The Household Choice: Climate Change and the Weight of Everyday Decisions
Climate change is often discussed in global terms, such as the melting of ice caps, rising oceans, and the spread of wildfires. However, the truth is that it begins at home. Every single-family household, whether in the bustle of Toronto, the suburbs of Vancouver, a farming community on the Prairies, or a small northern town, is an active participant in shaping the climate future. The actions we take or fail to take are not isolated. They accumulate, reverberate, and shape the quality of life our children, grandchildren, and great-grandchildren will inherit.
The Myth of Insignificance
Many households believe their contribution is too small to matter. “What difference does it make if I leave the lights on, drive everywhere, or throw food scraps in the garbage? I’m just one family.” But this myth of insignificance is one of the greatest dangers of our time. Each discarded plastic bottle, each unnecessary car trip, each bag of wasted food does not disappear. It piles up, becoming part of the global crisis of climate change. What feels like a private choice is, in reality, a public consequence.
Inaction as a Legacy
Imagine a Canadian family that chooses not to recycle, not to conserve, not to shift their habits. For a year, the consequences may feel invisible. But roll the clock forward. By 2050, their grandchildren in Toronto will wake up to summers filled with weeks-long heat advisories. Schoolyards and parks sit empty in July because it is too dangerous for children to play outdoors. Ontario’s hydro grid is stretched thin due to millions of air conditioners running simultaneously, leading to rolling blackouts. Food prices have doubled as droughts in the Prairies devastate crops, and supply chains falter. Sound familiar? Its already happening across Canada!
Meanwhile, their cousins in Prince Edward Island are coping with rising seas. Entire communities along the coast are gone, washed away by storm surges that happen with increasing frequency. Families that lived by the water for generations have been forced inland, their ancestral homes now threatened by sea rise. This is not exaggeration, climate science paints a stark and very real picture of future coastal realities.
By 2075, their great-grandchildren in northern communities will live with constant water restrictions, as the thawing of permafrost has altered rivers and lakes. Traditional hunting grounds are unsafe because the ice forms too late and melts too soon. Invasive pests and fire scar forests that once provided medicine and food. The Earth around them bears the weight of countless small inactions compounded across time. And when they look back, they see a generation that knew better but refused to change.
Action as a Legacy
Now imagine another Canadian family. They compost, recycle, conserve, and teach their children that every small act of stewardship makes a difference. For a year, the impact may seem modest. But roll the clock forward.
By 2050, their grandchildren in Winnipeg will be growing vegetables in backyard and community gardens, nourished by decades of composting. Energy bills are lower because their homes are equipped with rooftop solar panels and properly insulated to conserve heat in winter and cool in summer. Children still play outside freely because air quality warnings are rare.
Out east, their relatives in Halifax have adapted coastal homes to utilize renewable energy micro-grids and employ storm-resilient design. They continue to live by the ocean, harvesting from healthier waters thanks to decades of careful stewardship and waste reduction. By 2075, their great-grandchildren in northern Ontario communities thrive in local economies powered by clean energy.
Rivers run clearer because they are not treated as dumping grounds. Indigenous and non-Indigenous households work together in climate-adaptive food systems, including greenhouses, hydroponics, and land-based harvesting, to ensure food security without overburdening ecosystems. This family’s small actions, multiplied over decades, became part of a collective movement toward renewal.
The Full Cycle of Consequence
Every household action has a cycle. Throwing out food waste creates methane gas, which accelerates global warming, intensifying storms that flood homes, including those in Montreal, Calgary, and Fredericton. Driving when public transit is available contributes to emissions, which in turn lead to hotter summers in Ottawa, resulting in higher cooling costs, increased strain on the grid, and potentially blackouts during heatwaves. Buying fast fashion creates textile waste that ends up in Canadian landfills, similar to those outside Vancouver or Edmonton, polluting soils and waterways long after today’s wearers are gone.
The cycle is relentless, and it all begins with decisions made in the privacy of the household. What we must recognize is that there is no neutral choice. Every action either adds to the problem or contributes to the solution.
Looking Generations Ahead
The question is not whether a single-family household can “solve” climate change. It cannot. The question is: will this household’s actions add to the burden or lighten it? Will future children, grandchildren, and great-grandchildren wake each morning in a Canada that is habitable and thriving, or one that is hostile and diminished?
To answer this question, every family must reflect on what kind of ancestors they want to be remembered as. Because, in truth, the climate crisis is not just about us; it is about them.
Blog by Rye Karonhiowanen Barberstock
Image Credit :Olivie Strauss, Unsplash
The post The Household Choice: Climate Change and the Weight of Everyday Decisions appeared first on Indigenous Climate Hub.
The Household Choice: Climate Change and the Weight of Everyday Decisions
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