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The food system must contribute to maintaining the 1.5-degree target set by scientists based on physics, mathematics, biology, and chemistry. The consequences of climate change are already evident and surpassing predictions made over the past 30 years.

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Global carbon emissions have doubled since pre-industrial times, leading to visible impacts like floods and melting glaciers. Countries must divide the carbon budget and create sector-specific measures to reduce emissions, even if it means limiting activities like air travel.

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In a few days, our planet's population will reach 8 billion, highlighting the importance of this climate conference. The question of what we did for our world and planet when we had the chance will be asked by future generations. This conference serves as a reminder that the responsibility lies with us, and time is running out. Greenhouse gas emissions continue to increase, global temperatures are rising, and we are approaching irreversible tipping points of climate chaos. We are currently on a dangerous path, accelerating towards climate disaster.

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Earth Day was a mixed success, with predominantly young, white, and anti-Nixon protesters. Despite this, the seriousness of the message came through: act or face dire consequences. Climate change has caused a 1-degree Celsius increase in global temperatures and unprecedented levels of carbon dioxide. We are dangerously close to irreversible tipping points that could lead to catastrophic temperature rises, food and water shortages, and the collapse of civilization. The United States and China, as the largest economies, must cooperate to meet climate goals. It's a choice between climate solidarity or collective suicide. Climate change is the greatest threat to human security ever faced.

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In a few days, the world's population will reach 8 billion, highlighting the importance of this climate conference. The speaker emphasizes that we must be prepared to answer future generations when they ask what we did for our planet. The conference serves as a reminder that the responsibility lies with us, as greenhouse gas emissions continue to increase and global temperatures rise. Our planet is nearing irreversible tipping points, leading to climate chaos. The urgency to act is clear, as we are currently on a destructive path.

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Agriculture contributes 26-33% of global emissions, making it central to achieving net zero. The world population recently surpassed 8 billion, increasing the urgency. Food system emissions alone could cause an additional 0.5 degrees of warming by mid-century. A 2-degree warming scenario could leave 600 million more people undernourished. Reducing food system emissions is crucial to keeping the 1.5-degree target alive. Scientists using physics, mathematics, biology, and chemistry have warned of consequences already being observed. These consequences are materializing faster and with greater intensity than initially predicted.

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Agriculture is responsible for a significant portion of global emissions, ranging from 26% to 33%. To achieve net zero emissions, agriculture must be a central part of the solution. However, with a growing population of over 8 billion people, emissions from the food system alone are projected to cause half a degree of warming by mid-century. This could result in 600 million people not having enough food in a two-degree future. We cannot warm the planet and expect to feed it simultaneously. To maintain a 1.5-degree limit, we must reduce emissions from the food system. Scientists, based on physics, mathematics, biology, and chemistry, have warned us about the consequences of exceeding this limit, which are already becoming evident and surpassing previous predictions.

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John Kerry, the US special presidential envoy for climate, claims that emissions from the food system will contribute to a 3-degree increase in global temperature, rather than the desired 1.5 degrees. He emphasizes the need to reduce emissions from the food system to combat the climate crisis. However, critics argue that Kerry's statements are lies and that the world's climate has changed naturally in the past. Kerry urges civil society to push for change and emphasizes President Biden's commitment to addressing climate change. He believes that with the right choices, victory in this battle is possible.

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The speaker, who has participated in four reports from the Intergovernmental Panel on Climate Change (IPCC), emphasizes that there is no exaggeration in the IPCC reports. In fact, some argue that the reports are not alarmist enough. The speaker points out that current events, such as extreme weather events, heatwaves, droughts, wildfires, and rising sea levels, align with what has been predicted in the IPCC reports since the 1990s. They refute the claim that the IPCC reports are exaggerated and stress the importance of recognizing the credibility of the scientific community. The speaker concludes by urging action in the present to address the future impacts of climate change.

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Agriculture is responsible for around 33% of global emissions, making it crucial to address in order to achieve net zero. With a growing population of over 8 billion people, emissions from the food system alone are projected to cause half a degree of warming by mid-century. This could result in 600 million people not having enough to eat. We cannot warm the planet and expect to feed it simultaneously. To maintain a 1.5-degree limit, we must reduce emissions from the food system. Scientists, based on physics, mathematics, biology, and chemistry, have warned us about the consequences of not taking action. These predictions are already coming true, but at a faster and larger scale than anticipated.

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200 years ago, the temperature was only 1.5 degrees Celsius cooler than now, so claiming a 1.5-degree increase will be catastrophic is ridiculous. In the past, temperatures were much higher, yet CO2 levels were decreasing. There is no clear relationship between temperature and CO2 levels based on historical data.

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The world is experiencing an alarming acceleration of climate change. Mega fires in Canada have caused widespread destruction, with smoke traveling across the Atlantic and polluting cities like New York and Montreal. Record-breaking heatwaves are occurring globally, reaching temperatures as high as 51 degrees Celsius in Iran and 41 degrees Celsius in Corsica, France. The Arctic's summer ice is disappearing, exacerbating the situation. Two major studies warn that billions of people could face deadly heat and the Earth may become uninhabitable if action is not taken. Despite these alarming findings, global CO2 emissions remain at record levels. Scientists are frustrated by the lack of political will to implement existing, feasible, and financially viable solutions. It is crucial to understand the consequences of this acceleration and work towards achieving necessary goals to prevent catastrophe.

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Agriculture contributes 26-33% of global emissions, making it crucial to achieving net zero. With a population of over 8 billion, emissions from the food system alone could cause an additional 0.5 degree of warming by mid-century. This could lead to 600 million people facing food shortages in a two-degree future. To prevent this, we must reduce emissions from the food system to keep global warming at 1.5 degrees. Scientists, based on physics, mathematics, biology, and chemistry, have warned us about the consequences of exceeding this limit. Their predictions have been coming true faster and on a larger scale than anticipated.

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Scientists' warnings about mega storms, floods, droughts, ice melting, rising sea levels, stronger storms, tropical diseases, and climate migrants have been accurate. Without action, there could be 1 billion climate refugees crossing international borders in the coming decades. A few million refugees have already contributed to a wave of populist authoritarianism, and a billion could overwhelm our capacity for self-governance. People are already being displaced from their homes, and areas are becoming physiologically unlivable due to heat and humidity. These areas, currently small, could expand to include most of India, large parts of Northern South America, the Philippines, Indonesia, and Pakistan if no action is taken. The survival of our civilization is at stake.

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"The average temperature of the planet does seem to be going steadily upwards." "Since the mid eighties." "It went down in the seventies." "Since then, it's warmed at about a quarter of a degree per decade on average across the last thirty, forty years." "And it's maybe they say it's 1.5 degrees above pre industrial levels now." "So we're not in a period of unprecedented warmth." "We're not in a period of increasing extreme weather." "Floods, droughts, storms, there's no increase in either frequency or severity." "But at the same time, the carbon dioxide we're putting in the air is having a very measurable effect that's beneficial." "There is there is more green vegetation on the planet now compared with the nineteen eighties equivalent to a continent the size of North America that's been added of green vegetation."

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We are in a planetary emergency and must act to prevent people from becoming climate refugees and losing their lives and livelihoods.

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Agriculture is responsible for a significant portion of global emissions, ranging from 26% to 33%. To achieve net zero emissions, agriculture must play a central role in the solution. However, with a growing population of over 8 billion people, emissions from the food system alone are projected to cause half a degree of warming by midcentury. This could result in 600 million people facing food insecurity in a 2-degree future. To prevent this, we need to reduce emissions from the food system and strive to keep global warming within 1.5 degrees. Scientists have warned us about the consequences of exceeding this limit based on physics, mathematics, biology, and chemistry. These predictions are already coming true, but at a faster and larger scale than anticipated.

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Agriculture is responsible for about 33% of global emissions, which could increase to 26-33%. To achieve net zero, agriculture must be a key part of the solution. However, with a growing population of over 8 billion people, emissions from the food system alone could cause half a degree of warming by mid-century. This could result in 600 million people not having enough food in a two-degree future. We cannot warm the planet and expect to feed it simultaneously. To maintain a 1.5-degree limit, we must reduce emissions from the food system. Scientists have warned us about the consequences based on physics, mathematics, biology, and chemistry, and these predictions are already coming true, but at a faster and larger scale than anticipated.

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A 1.5 degrees Celsius increase in global atmospheric temperature is not a disaster. It's less than the temperature difference between breakfast and lunch and will open up vast areas of farmland. During the Eocene thermal maximum, the temperature was at least 5 to 7 degrees Celsius warmer than now, maybe even more. At the same time, CO2 was going in the exact opposite direction of the temperature. There is no clear relationship between CO2 and temperature.

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The goal of limiting global warming to 1.5 degrees Celsius is crucial, as even a small increase can have significant impacts. The Paris Agreement, signed by 193 parties in 2015, aims to keep temperature rise below this threshold. Currently, the planet is already 1.1 degrees warmer than pre-industrial levels. If temperatures rise by 1.5 degrees, 69 million people will be affected by rising sea levels, while 80 million will be affected at 2 degrees. Heat waves will impact 14% of the population at 1.5 degrees, increasing to 37% at 2 degrees. Additionally, biodiversity loss and extreme weather events will worsen. To achieve the 1.5-degree target, global emissions must be reduced by 45% by 2030 and reach zero by 2050. Immediate action is essential to minimize the worst effects of climate change.

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Canadians have experienced the devastating effects of climate change, such as wildfires, floods, and storms. We acknowledge that this is a global issue and it is our duty to make decisions based on scientific evidence and take ambitious actions. Although we are concerned, we remain hopeful. We understand that time is running out and we must act now. We must not let this opportunity pass and we cannot go back on our commitments.

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Climate change is the biggest threat to the world. Time is running out, and this is a fact. Finally, everyone in America is acknowledging it.

TED

The state of the climate crisis | Climate Action Tracker
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In November 2015, 197 countries agreed to limit global warming to 1.5 degrees Celsius. The Climate Action Tracker reveals that emissions are rising, and current targets are insufficient; even if met, temperatures could exceed 2 degrees Celsius. Only The Gambia and Morocco are making significant progress. While some countries, like China and the EU, show potential, many advanced economies are not leading. A transition to clean electricity and emission-free transportation is underway, but more ambitious actions are needed to transform the economy and reduce emissions significantly.

Doom Debates

Climate Change Is Stupidly EASY To Stop — Andrew Song, Cofounder of Make Sunsets
Guests: Andrew Song
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Andrew Song, co-founder of Make Sunsets, discusses their geoengineering approach to mitigating climate change. Make Sunsets launches reflective clouds near the ozone layer, mimicking the cooling process of volcanic eruptions by injecting sulfur dioxide into the stratosphere. This method aims to buy humanity time to decarbonize economies and remove excess CO2. Song argues that climate change is an addressable problem that is not currently being prioritized. He estimates a less than 5% 'Poom' (probability of doom) from climate change, contingent on addressing it with solutions like stratospheric aerosol injection. The company's approach involves filling biodegradable latex balloons with sulfur dioxide and hydrogen, which then float into the stratosphere and pop, releasing the sulfur dioxide. This reflects sunlight, creating a cooling effect. Song notes that this mimics natural phenomena, such as volcanic eruptions and ship tracks, which have demonstrated similar cooling effects. He acknowledges that this is a temporary measure, an 'Ozempic' or band-aid for climate change, while emphasizing the need for carbon removal technologies to scale up. Song explains that since the 1850s, the planet has warmed by 1.2 to 1.3°C, nearing the 1.5°C threshold set by the Paris Agreement. He details potential disaster scenarios, including increased wildfires, floods, and intense storms, leading to trillions of dollars in property damage. While human resilience has decreased deaths, ecological collapse remains a concern, especially for biodiversity. Geoengineering, including carbon removal and solar radiation management (SRM), offers potential solutions. SRM involves influencing radiative forcing, such as painting roofs white or marine cloud brightening, but stratospheric aerosol injection is the most well-studied intervention. Make Sunsets aims to mimic volcanic eruptions by injecting sulfate aerosols into the stratosphere. Song references the IMO 2020, where reduced sulfur content in shipping fuel led to a noticeable warming effect, and the Clean Air Act, which reduced sulfur dioxide emissions, unmasking warming. He argues that sulfur dioxide, like ozone, has both beneficial and harmful applications depending on its location. In the stratosphere, it reflects UV radiation, while at ground level, it causes acid rain and respiratory issues. The company's balloons release approximately 1500 grams of SO2, offsetting the warming effect of one ton of CO2 per year, a 1 to 1 million leverage. The sulfur dioxide used in the balloons is sourced from the refinement of oil, specifically sour oil and gas, where it is a waste product. The gas is also used as a fungicide and preservative in wine. Song mentions that one oil company produces 10 million tons of elemental sulfur annually, enough to cool the entire planet by 0.5°C. Scaling up the operation involves using larger, one-ton balloons that can offset the warming effect of 1 million tons of CO2 per year. To roll back the entire industrial revolution's CO2 emissions, 1.5 million tons of sulfur dioxide would be needed, requiring a billion of their current balloons. Song estimates that achieving 0.5 degrees Celsius of cooling would cost around $1 billion per year, making it a cheap solution. He criticizes environmentalists who oppose it because it is 'too easy.' He suggests that one billionaire could fund the project and solve global climate change. He contrasts Make Sunsets with Bill Gates's failed Scopex project, which was blocked by NIMBYism. Song emphasizes that the company's operations are safe, as the sulfur dioxide is released in the stratosphere, avoiding acid rain. He notes that individuals can pay $1 to launch one gram of sulfur dioxide into the stratosphere, offsetting one ton of CO2 for a year. The conversation shifts to the potential downsides of geoengineering, including the risk of 'termination shock' if SO2 emissions are stopped abruptly. Song acknowledges that excessive amounts of sulfur dioxide could affect monsoon and rainfall patterns, but these effects can be avoided by limiting the quantity to around 2.5 million tons per year. He also addresses the 'moral hazard' argument, suggesting that easy solutions may disincentivize reducing fossil fuel consumption. However, he believes capitalism will drive the adoption of better technologies than fossil fuels. He advocates for a mindset shift, encouraging people to consume energy without guilt, as long as they offset their emissions through geoengineering efforts. Song envisions a future where AI manages the deployment of sulfur dioxide, optimizing its distribution based on satellite data and stratospheric winds. He highlights the potential for Make Sunsets to play a significant role in offsetting the CO2 emissions from new power plants, such as the one planned for OpenAI's Stargate project. He concludes by emphasizing the need for more people to recognize the simplicity and affordability of geoengineering solutions, advocating for a shift away from guilt-based approaches to environmentalism and towards embracing technological solutions.

TED

The Tipping Points of Climate Change — and Where We Stand | Johan Rockström | TED
Guests: Johan Rockström
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Earth system and climate scientists are increasingly alarmed by rapid planetary changes, with global temperatures rising 1.2 degrees Celsius, the highest in 100,000 years. Warming is accelerating, with projections indicating a potential rise to 2.7 degrees Celsius by 2100, leading to severe economic impacts, including an 18% loss of GDP by 2050. Key ecosystems, like the Amazon rainforest, are nearing tipping points, risking irreversible damage. To avoid catastrophic outcomes, emissions must be reduced by at least 7% annually, with a focus on transitioning to sustainable practices. Despite the urgency, there is hope as public concern grows and solutions are available, emphasizing the need for rapid, transformative action for a stable future.
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