We need to reach net zero emissions in order to achieve the ambition of the Paris Agreement, which is to hold global average temperature increase to “well below 2°C above pre industrial levels and pursuing efforts to limit the temperature increase to 1.5°C”.

Available technologies could allow the United States to achieve net-zero emissions by 2050. This would require rapid and widespread changes in policy and investment across many sectors of society and participation and commitment by government, industry, and individuals.

we have to do to eliminate all pollution.

Consume local and seasonal products (forget strawberries in winter)

Limit meat consumption, especially beef.

Select fish from sustainable fishing.

Bring reusable shopping bags and avoid products with excessive plastic packaging.

Make sure to buy only what you need, to avoid waste.

The first thing they would need to do is increase taxes on everyone—not just the rich. This would be a major change in policy and would likely be unpopular with the majority of Americans. However, it is possible that people would be willing to pay a little more if they knew that they could go to school without paying anything out of pocket or taking out loans.

The second thing they would need to do is eliminate all programs that help students pay for their education. These include grants, scholarships, loans, tax credits and deductions all help students pay for their education and make it more affordable for them by lowering their cost of attendance (COA). If these programs did not exist then COA might be higher than before because there are fewer ways for students to finance their education.

The short answer is: tax the wealthy more. The longer answer is that it would take years of tax increases to have enough money available to finance such a program.

The problem is not just that tuition is too expensive, but also that we have a system that relies on loans rather than grants and scholarships. Loans are an externality—something outside of the market—and they are particularly problematic because they're not accounted for by private companies and individuals making decisions about how much they can pay for something like education. If you want something more in-depth than what this article has provided, try reading John Rawls' A Theory of Justice (1971), which was published before he won the Nobel Prize in Economics.

Anyone who has taken a class in economics, at any level, knows that scarcity is the central concept of the discipline. The basic idea is that there are always limits to how much of something we can produce—and that those limits must be managed so that everyone's needs are met.

So when we hear politicians calling for tuition-free community colleges, we have to ask ourselves: how can they possibly afford it.

If you want to make college 100% free, you have several options:

1. Give every student $15k per year

2. Reduce or eliminate funding for other programs/services

3. Raise taxes on everyone else

There is a lot of talk about making community college free, but there's a lot of talk about how to pay for it.

When politicians talk about free tuition, they are usually referring to the cost of tuition and fees at public institutions of higher education. There are three ways to make community college free: 1) increase funding from the state government; 2) reduce expenditures at the institution; or 3) both.

The first option—increasing funding from the state government—is not realistic in most cases because states are facing economic problems and have been forced to cut spending on education. The second option—reducing expenditure at the institution—is much more likely because it involves decreasing spending by cutting costs rather than raising revenue through taxes or other sources. The third option—increasing funding from local sources or private donations—could be used as well to supplement any cutbacks made in state funding or other expenditures at an institution if those decisions are made based on need rather than ability to pay.

There are two things that need to happen in order for college to be 100% free. First, the government needs to provide a massive influx of money into our economy. Second, they need to give people the means and opportunities to spend it wisely.

If we want more people going to college, we need more jobs available for those who graduate. If there are no jobs available, then students won't have the money they need to pay off student loans.

The second part is easier than you think: give everyone a basic income and let them decide how best to spend it. A universal basic income would allow anyone who wants to go back to school or start their own business or otherwise invest in their own future without having to worry about how they're going to pay for it..