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A series of top Democratic presidential candidates have released sweeping plans to combat climate change over the last two weeks, putting the issue front and center ahead of CNN's climate crisis town halls on Wednesday night.Although the overarching themes of each plan are similar -- all candidates lay out how they believe combating climate change is one of the most pressing issues facing the country -- there are marked differences within each proposal, as the candidates compete to distinguish themselves as the most focused and most willing to spend trillions to stop and reverse global warming.Key differences are especially clear in how each candidate will pay for their plans. While some candidates argue they will fund the massive increase in federal spending by cracking down on polluters or instituting a carbon tax, others pledge to end tax breaks to fossil fuel companies and alter the tax code to ensure the wealthiest in the United States pay more. Some candidates endorse all of the above.The climate crisis is a preeminent issue in the Democratic nomination fight, with polls showing it among the top -- if not the top -- issue on the minds of Democratic voters. A report by the UN Intergovernmental Panel on Climate Change warned recently that the planet has only until 2030 to stem catastrophic climate change.Many of the candidates are also looking to tie themselves to former Washington Gov. Jay Inslee, the Democrat who centered his presidential campaign around climate change before he dropped out in August. Inslee met with Massachusetts Sen. Elizabeth Warren to discuss her plan, which expressly embraces portions of Inslee's detailed proposals, and former Housing and Urban Development Secretary Julian Castro's campaign touted its work with Inslee's team on its proposal.Joe BidenFormer Vice President Joe Biden released his climate change plan earlier this summer, laying out a plan that pledges to go further than President Barack Obama's administration on climate, but is not as sweeping as the Delaware Democrat's more liberal opponents.Biden's plan would dedicate .7 trillion to eliminate greenhouse gas emissions by 2050, end fossil fuel subsidies and ban new oil and gas permits on public lands. Biden does not outright support the Green New Deal, but his plan does tout the former vice president's support of elements of the plan that has been near universally endorsed by the left of the Democratic Party.Biden, along with all of his Democratic opponents, supports rejoining the Paris climate accord, a sweeping multi-national climate agreement that President Donald Trump left early in his administration."Science tells us that how we act or fail to act in the next 12 years will determine the very livability of our planet," he said. "That's why I'm calling for a clean energy revolution to confront this crisis and do what America does best -- solve big problems with big ideas."Bernie SandersWhere Biden's plan was scaled back, Bernie Sanders' plan released in August was massive: The Vermont senator called for .3 trillion in spending, comparing the task of combating climate change to a World War II-style mobilization of almost every sector of the economy.The Sanders proposal's goal of reaching 100% renewable energy for electricity and transportation by 2030 matches the timeframe set by the IPCC, which outlined the dire consequences of global warming -- and what it would take to reverse them --in a 2018 report.That timeline, however, is significantly faster than many of Sanders' opponents.Sanders said his plan would create 20 million jobs in the transition away from fossil fuels despite imposing a ban on energy extraction, including fracking and mountaintop coal mining. He would also pursue civil and criminal cases against companies that concealed institutional knowledge of the dangers their products posed to the environment."Climate change cannot only be addressed by the United States. It is a global issue," Sanders said last month in Iowa. "But my promise to you is, instead of ignoring this issue as Trump does, I will help lead the world in bringing countries together to address the issue."Elizabeth WarrenWarren, the other leading progressive hopeful, has made the most explicit overtures to Inslee, adopting on Tuesday significant portions of his plan after the two met.But the Massachusetts senator has also added her own pieces to the puzzle. In June, as part of a broader economic plan, she proposed spending trillion on green manufacturing, research and development, and the marketing of new technology overseas.On Tuesday, Warren offered a fuller picture of her climate platform. Her goals -- which would be spurred by an additional trillion -- include reaching zero-carbon emission commercial and residential for new buildings by 2028; zero-carbon emission on new light-duty passenger vehicles, medium-duty trucks and all buses by 2030; and zero-carbon emission and renewable electricity by 2035.Kamala HarrisCalifornia Sen. Kamala Harris released a climate plan on Wednesday which aims for a carbon-neutral US economy by 2045, a more expedited timeline than others. The Democrat's plan touts trillion in public and private spending, but the amount the federal government would spend was not released.Harris' plan has many of the trademark Democratic climate proposals -- like reversing Trump's actions, investing in zero-emission transportation and carbon-neutral electricity and ending and federal subsidies for the fossil fuel industry -- but her plan also leans into the Climate Equity Act, legislation that she and Rep. Alexandria Ocasio-Cortez announced earlier this summer that focuses on "frontline communities," those that have experienced systemic socioeconomic disparities.Harris' plan also harkens back to her time as a prosecutor, especially when she helped California win an million settlement with Volkswagen for cheating on emissions tests for its diesel vehicles. If she becomes President, Harris' plan states, she will increase penalties for companies that violate federal pollution laws and restoring the "polluter pays" model for funding the Superfund program.Cory BookerNew Jersey Sen. Cory Booker, too, uses a more expedited timeline in his climate proposal, aiming to spent trillion to reach carbon neutrality by 2045.Booker's plan, released on Tuesday, would put money in Americans pocked with a "progressive climate dividend" paid to Americans through new carbon fees placed on fossil fuel producers and would use executive action to undo much of Trump's climate action.Unlike some candidates, Booker ties combating climate change with a direct focus on minority and vulnerable communities, arguing that those without significant economic means are more directly impacted by the issue."We are facing a dual crisis of climate change and economic inequality," Booker said in a statement. "Without immediate action, we risk an incredible human toll from disasters, health impacts, rising national security threats, and trillions of dollars in economic losses."Julián CastroCastro was another candidate who tied economic instability and vulnerable communities into his plan to combat climate change. Castro claims that his plan released on Tuesday would lead to trillion in spending on addressing the climate crisis, but the former San Antonio mayor does not explicitly outline total federal spending.But it is Castro's calls for an increased focus on how climate change most impacts vulnerable communities that set his plan apart. Castro says that within his first 100 days as president he will "propose new civil rights legislation to address the disparate impact of environmental discrimination and dismantle structures of environmental racism.""The problem is that, like our neighborhoods, pollution is segregated," Castro writes in his proposal, noting a 2007 study that found more than half of the 9 million people living close to hazardous waste were black.Pete ButtigiegSouth Bend, Indiana, Mayor Pete Buttigieg takes a more technical approach to combating the climate crisis in his plan released on Wednesday.Buttigieg explicitly outlines how the Department of Defense would take the lead in combating the issue by creating a "Climate Watch Floor" within the department. The plan also creates a new senior climate security role within the Pentagon.In total, Buttigieg's plan would commit between .5 and 2 trillion to combat climate change, a number smaller than his opponents, but his campaign argued on Wednesday that these federal investments would leverage tens of trillions of dollars in private, state and local investments. Buttigieg's plan would also spend an additional billion on climate research and make billion annually available for grants aimed at rural America.Buttigieg outright supports the Green New Deal and reentering the Paris climate agreement and would add billion to the Low-Income Energy Assistance program, which helps cover bills in times of crisis like a heat wave or extreme cold.Beto O'RourkeFormer Rep. 9087

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America's Dairyland is in crisis. More and more Wisconsin dairy farmers are going out of business. Part of the solution might actually involve milk — but not in the way one might think.About 700 Wisconsin Dairy farms went out of business last year — more than two each day."The dairy industry has been struggling for a while, but now the problem has become acute and we must act and we must act now," said Wayne Weber, Dean of the College of Business, Industry, Life Science, and Agriculture at University of Wisconsin-Platteville.That action starts at a farm tucked away in the rolling hills of Southwest Wisconsin. Professor Tera Montgomery helps run the Pioneer Farm at UW-Platteville. The cows and calves are part of her classroom."It's a living and learning laboratory so there is something going on all the time," Montgomery said. "It's a working farm."Platteville is one of three UW schools hoping to get a share of million in research dollars from the state to start the first ever Dairy Innovation Hub — a center dedicated to tasks like finding new dairy products, but also looking for unconventional ways to use milk.One of those techniques involves combining manure and cheese byproducts in a digester, creating energy. Montgomery says that this energy could potentially run communities local to dairy farms.Students at the Pioneer Farm are also hoping to develop new products to help people with allergies or an intolerance to milk enjoy it."It's making sure we are making unique products that are going to be what the consumer wants and what the consumer needs," Montgomery said.It's not just about finding ways to produce more milk. Weber believes the research dollars will produce results for an industry that already contributes billion to Wisconsin's economy."It's going to provide an infrastructure by which we can work with, together, industry partners - researchers, to start to deal with those questions on how do we move the dairy industry into a positive and viable industry in the future," he said.Not only for America's Dairyland, but for America.The research money for the Dairy Innovation Hub made it out of the Senate Committee on Agriculture, Revenue and Financial Institutions with a unanimous vote. It still needs to clear the Senate and Assembly before getting to the desk of Wisconsin Governor Tony Ever. 2356

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