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The climate emergency is the defining crisis of our time, and we are losing the race against it. There is a growing impatience, especially among youth, for more ambitious action from governments, businesses, and individuals. TED Countdown is launched as a global initiative to cut greenhouse gas emissions, seeking bold solutions across five key areas: clean energy, the built environment, transport, food systems, and nature. The goal is to achieve net-zero emissions by 2050, with significant reductions by 2030. Christiana Figueres emphasizes the need for collective action, stating that "impossible is not a fact, it's an attitude." The urgency is underscored by scientists warning of irreversible tipping points in the Earth system. Despite the knowledge and tools available, greenhouse gas emissions continue to rise, necessitating immediate action. The initiative invites participation from all sectors, aiming to connect diverse groups to amplify existing solutions. Young activists express their determination to demand action, highlighting the importance of education and community engagement. The event on October 10, 2020, will mobilize global participation, encouraging citizens to engage in local initiatives. The conversation also addresses the role of businesses and the need for a circular economy. The initiative aims to foster collaboration across all sectors, emphasizing that everyone has a role in combating climate change. Ultimately, the message is clear: collective action is essential to create a sustainable future.

In climate and energy, Doerr explains, the 2006–2007 bets combined climate investing with the iFund and the advent of the app store and cloud. Kleiner invested about a billion dollars across 70 climate-related companies; today those holdings are worth roughly three billion on an as-held basis. That early work helped seed climate 2.0—electric vehicles, batteries, wind, and solar—and set a foundation for ongoing innovation. Asked about market timing, Doerr says you can be too early but never too late. He recaps Google's origin: 12 million dollars for 12 percent, based on PageRank and a vision of organizing all the world’s information. He recalls the tense partnership debate over the price and the model: ads in an open auction tied to relevance, a decision that forged one of the most consequential bets in venture history. Today the climate problem is urgent and different from 2006. He outlines six objectives and 55 key results in Speed and Scale: electrify transportation, decarbonize the grid, fix food systems, protect nature, clean up industry, and remove stubborn carbon. The book argues OKRs bridge goals and execution, with stories from youth and Indigenous leaders to inspire action. Greta Thunberg’s movement turned climate into a top two voting issue in Europe. He discusses governments as the biggest obstacle and the necessity of a global push for net zero by 2050, with 2030 milestones. Walmart’s supply-chain push to net zero by 2040 and Endphase’s rise illustrate how investor and corporate activism can drive progress ahead of governments. He emphasizes active listening, thoughtful board questions, and recruiting talent as core leadership skills, and notes climate investing should be strategic, not universal.

Bruno Giussani introduces Bill Gates, who discusses his book "How to Avoid a Climate Disaster," emphasizing the urgent need to reduce greenhouse gas emissions from over 51 billion tons per year to zero. Gates highlights the major sources of emissions: electricity (27%), transportation (16%), agriculture (19%), heating (7%), and manufacturing (31%), with manufacturing being the hardest to decarbonize. He introduces the concept of the "green premium," the cost difference between green products and their fossil fuel counterparts, stressing the need to lower this premium significantly to facilitate a global transition to clean energy. Gates advocates for increased R&D funding, innovation, and market demand for green products, noting that the U.S. must lead in making these technologies affordable for developing countries. He emphasizes that individual actions, political engagement, and a focus on long-term goals are crucial for achieving net-zero emissions by 2050. Gates concludes by envisioning a future where humanity successfully collaborates to eliminate emissions while maintaining quality of life.

Monica Araya announced the Drive Electric campaign, aiming to tackle emissions from over a billion vehicles by engaging cities, politicians, companies, and citizens. The coalition of 70 organizations has already influenced the European Commission to propose banning petrol and diesel car sales after 2035. The campaign seeks to accelerate the transition by 20 years, potentially saving 160 gigatons of CO2. They aim to raise $1 billion, with $300 million already secured.

We need to view the climate challenge as an opportunity. Today, we can achieve net-zero emissions due to cheaper inputs, better technologies, and increased investment. Innovations like lithium-ion batteries and sustainable materials are emerging. Climate solutions are now attractive and supported by public demand and improved policies. The urgency is recognized, and passionate people are driving change, creating a virtuous cycle for progress.

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.

2021 is critical for climate action as governments must update their plans under the Paris Agreement. To limit global warming to 1.5 degrees Celsius, emissions must be halved by 2030 and reach net zero by 2050. Currently, 131 nations have net zero targets covering 73% of emissions, but existing actions will lead to a 2.9 degrees Celsius rise by 2100. Short-term actions are lagging behind long-term commitments, with many countries needing to revise their targets. Renewable energy is becoming the norm, and bold leadership is essential to achieve climate goals. Every action and tenth of a degree matters.

John Doerr and Hal Harvey discuss the urgent need to reduce carbon emissions to zero by 2050, with a 50% reduction by 2030. Currently, 55 billion tons of carbon are emitted annually, primarily from the largest 20 emitting countries and four sectors: grid, transportation, buildings, and industry. Climate change is a "wicked problem," requiring international cooperation and long-term strategies. Decarbonizing the electrical grid and electrifying all sectors is essential, with solar and wind energy becoming cost-effective solutions. However, significant advancements in battery technology and clean energy R&D are needed. Effective policies, such as continuous improvement and targeted decision-maker engagement, are crucial for driving change. The Paris Accords, while non-binding, encourage nations to strive for better outcomes. Both express hope that with focused efforts and innovation, significant progress can be made in combating climate change.

The climate crisis demands urgent solutions, and while progress is being made, emissions continue to rise. Al Gore emphasizes the need to address the fossil fuel industry's opposition, which actively lobbies against climate legislation and misleads the public. He highlights the conflict of interest at COP28, where fossil fuel executives influence policy while planning to increase emissions. Despite some positive developments, like the Inflation Reduction Act and advancements in renewable energy, the fossil fuel sector's actions contradict their pledges to reduce emissions. Gore calls for reform in the financial system, as governments subsidize fossil fuels significantly, hindering progress. He asserts that with the right changes, emissions can be reduced by 50% in seven years. Importantly, achieving true net-zero could stabilize global temperatures within three to five years, offering hope for the future. Young people are demanding action, and Gore concludes that the will to act is a renewable resource.

Al Gore opens the Countdown event, emphasizing the urgency of the climate crisis and the need for collective action. He reflects on the progress made since *An Inconvenient Truth* but notes that the impacts of climate change are worsening. The event, hosted by Latif Nasser, features performances and talks from various artists and activists, highlighting innovative solutions and the importance of community involvement. The urgency of tackling climate change is reiterated, with a focus on the need for immediate action and collaboration. The event showcases stories of hope, innovation, and leadership from scientists, activists, and policymakers, including Mark Ruffalo, who stresses the power of community action in addressing the crisis. David Biello provides a primer on climate change, explaining the role of greenhouse gases and the concept of net zero emissions. He emphasizes the importance of decarbonization and the need for systemic change across various sectors, including transportation and agriculture. The discussion highlights the necessity of reducing emissions by 50% by 2030 to mitigate the worst effects of climate change. Christiana Figueres and Al Gore discuss the significance of the Paris Agreement and the need for global cooperation to achieve climate goals. They stress the importance of investing in renewable energy and transitioning away from fossil fuels, particularly in developed nations. Youth activists, Shiv Soin and Xiye Bastida, share their demands for world leaders, calling for immediate action on fossil fuel investments and climate justice. They emphasize the need for youth voices in decision-making processes and encourage individuals to engage in local climate initiatives. The event also addresses the interconnectedness of climate change with social justice, highlighting how marginalized communities are disproportionately affected. Speakers like Reverend Lennox Yearwood and Michaela Jaé Rodriguez stress the importance of inclusivity and equity in climate action. The conversation shifts to innovative solutions, including electrification of transportation, sustainable agriculture, and the protection of natural ecosystems. Various speakers discuss the potential of new technologies to reduce emissions and the importance of community-driven efforts in achieving climate goals. The event concludes with a call to action, urging individuals to take personal responsibility for climate change and to advocate for systemic change. Participants are encouraged to join initiatives like Count Us In to contribute to the global movement for a sustainable future.

To combat climate change, we need to generate five times today's clean electricity production, totaling around 120 petawatt hours by 2050. This is essential for electrifying various sectors, expanding energy access in developing countries, and achieving net-negative emissions. The transition requires building a new global electricity system, utilizing all clean energy sources, and ensuring abundant, affordable electricity for a sustainable future.