It's no secret—here in the U.S., there's an election coming up. It's soon. It's a big decision for American voters. And it's a big deal.

It's also not the only decision with global consequences this fall. Because at the same time the U.S. campaign season was getting into the business end of things, more and more leaders all around the world were deciding to stand up to climate change and sign on to the historic Paris Agreement. In fact, 86 parties (representing over 61 percent of global emissions) have already joined this landmark agreement—which will now go into effect on Nov. 4, four days before the U.S. votes. Interesting timing, don't you think?

Coincidence or not, the timing of the two events highlights what's at stake for our planet in these decisions and why—we've learned anything after months and months of way too many ads, speeches and debates, it's that politicians go where the voters tell them. So let's make the climate issue their issue, the one they can't afford to ignore. And not just this year, but in every year that follows.

Why now? Because with the Paris Agreement becoming official, we finally have the framework to fight climate change together as one planet in a way we never have before. And with all the incredible progress we're seeing in renewables and other areas of solutions, we finally have the tools and technology to make a global shift from fossil fuels to clean energy, affordably and effectively. Want proof? Here are seven reasons we're hopeful for the future, because the solutions are out there:

1. Renewables are growing and getting cheaper

Due to declining costs and improvements in renewable technologies, solar and wind projects are being built in more places around the globe more cheaply than any time in history. On top of that, if the price of photovoltaic cells continues to drop as rapidly as it has over the past 10 years, solar power could be as cheap as coal almost everywhere by as early as 2017!

According to some studies, almost 100 percent of the world's energy needs could be met with renewable sources by mid-century—as long as the right supportive public policies are put in place to help implement them. That's where our elected leaders come in— and where you come in too.

2. Cost of rooftop solar is competitive

In many places across the U.S., not only is solar power becoming more affordable than ever before, it's actually becoming cost competitive with most utility rates for energy from fossil fuel. When solar power costs the same (or less!) as purchasing power from the grid, it's called solar grid parity, and it's an important milestone in demonstrating the cost-effectiveness of harnessing the power of the sun. The U.S. is well on the way to achieving the SunShot Initiative's 2020 goal of solar grid parity—with several major regions following suit.

3. Remarkable progress in energy storage

How we create energy with renewables is important. How we store this energy—so we can use it when needed—is just as critical. That's because the sun doesn't shine 24 hours a day every day, nor is it always windy. The good news is this: we're seeing incredible progress in energy storage. For example, a bill for California's energy storage mandate passed unanimously, instructing the state's investor-owned utilities to greatly expand electricity storage capacity. And since then, the state has expanded the mandate to allow even more energy storage. Similar policies in Japan and Germany are spurring similar growth in energy storage overseas.

4. The electric grid is evolving

Just like energy storage is important for renewable energy to thrive, a smarter and more flexible electric grid is critical too. Smart grids improve energy efficiency, save money, and can improve reliability—all great reasons to move away from fossil fuels towards cleaner sources of energy. And since the grid is evolving and more renewables are being introduced, there is huge potential to revolutionize the energy market—for the benefit of the environment and economy.

5. The electric vehicle market is booming

Sure, the news that Tesla was releasing its cheapest electric car yet threatened to break one corner of the internet, but that's not the only sign the electric vehicle industry and market are booming. Just look at China: the government has expanded incentives for electric vehicles, waiving or even cutting sales taxes. And plug-in cars are even changing the face of auto racing! Just last year, Miami hosted a Formula E race, where all the race cars were electric. How cool is that?

6. Transportation is more efficient and public transit is growing

A recent survey by Consumer Reports found that the overwhelming majority of Americans (84 percent, in fact) believe automakers should keep making cars and trucks more and more fuel efficient. And automakers are listening—and not just in the US. At the same time use of public and mass transportation is growing rapidly. Technical improvements for new vehicles could avoid about 1.4 gigatons of CO2 annually by 2030, several countries are implementing eco-driving programs, and emissions mandates on cars in the US and EU are saving drivers at the pump in a big way. Meanwhile, huge investments in public transportation in countries like India and Colombia are helping contribute to energy conservation, land preservation, reduced air pollution, and so much more.

7. Energy efficiency is improving and saving you money

The more efficient you are at a task, you're wasting less time to complete it, right? It works the same way with energy: the more efficient energy is, the less you'll waste. Listen to this: a study across certain countries showed in just five years, energy efficiency measures avoided the consumption of 570 million tons of dirty energy. In other words, without these measures, energy use across these countries would have actually increased by 5 percent.