Climate Change in California: Facts, Effects and Solutions (2024)

Climate patterns are changing, in California and across the planet. Since the mid 20th century, climate scientists have tracked these global warming trends and attributed them largely to human activity on the planet. That activity (our use of fossil fuels) has resulted in dramatically increased levels of carbon dioxide and other greenhouse gases in the atmosphere.

In California, much of the state’s energy still comes from our dependence on fossil fuels like natural gas and oil. When fossil fuels are burned, carbon dioxide, methane and other greenhouse gases are released into the air. These greenhouse gases, such as methane, are also released during fossil fuel extraction and transportation. Carbon dioxide isn’t harmful at natural levels, but too much can act like a layer of plastic wrap around the Earth that lets in heat from the sun but doesn’t let it escape. The atmosphere acts like a greenhouse, which is why these emissions are called greenhouse gases.

How Is Climate Change Affecting California?

In California, there are several areas of impact from climate change:

Keeping California Golden

No other state in the U.S. can match what California offers in terms of natural beauty, miles of coastline and idyllic weather. We’re also home to world-renowned entrepreneurs, inventors and dreamers—the kind of people who believe we can do anything once we set our minds to it. It’s easy to see why we love living in California. But the California we love is threatened. Climate change is already contributing to increased air pollution, deforestation, ocean acidification, more wildfires, droughts, heat waves and sea-level rise, which threaten our health, our livelihoods and our future. Scientists and other experts agree that we need to reduce carbon pollution if we are to avoid the worst effects of climate change, and there’s no time to waste. We have to find ways to work together to make real, substantive changes to protect what we have today and preserve our natural resources for future generations.

We’re Leading the Way to a Clean Energy Future

So how do we achieve such an ambitious goal? It will take effort and dedication from every Californian and company doing business here. We all need to play a part in successfully increasing energy efficiency, embracing clean energy and supporting clean technology. In achieving these goals, we’ll also enjoy the benefits that come with being early adopters of a clean-energy future. Besides fighting the effects of climate change, our collective efforts can boost our local economy by keeping clean-energy investments, jobs and innovation in California.

What Can You Do About Climate Change?

There are things each of us can do to minimize our environmental impact. In California, our biggest areas of individual impact are related to reducing our energy use in homes, cars and businesses, while better leveraging the cleaner energy resources available across the state.

Energy Upgrade California® is making it easier for you to reduce your carbon footprint by providing you with a variety of ways to save energy and water. Your utility and municipality may also provide rebates and other resources to help you take action.

It doesn’t take much to make a huge difference if all of us get involved. If every American home replaced one incandescent light bulb with a new ENERGY STAR energy-saving LED bulb, the Environmental Protection Agency (EPA) estimates that we could save enough energy to power three million homes for a year, save about $680 million in annual energy costs and eliminate nine billion pounds of greenhouse gas emissions per year.

Climate Change in California: Facts, Effects and Solutions (2024)

FAQs

What are the effects of climate change in California? ›

Heat waves are becoming more common, snow is melting earlier in spring—and in southern California, less rain is falling as well. In the coming decades, the changing climate is likely to further decrease the supply of water, increase the risk of wildfires, and threaten coastal development and ecosystems.

How can we solve climate change in California? ›

In 2022, Newsom spearheaded a groundbreaking climate plan for California – “the great implementation” as he called it – to help the state achieve net zero carbon pollution by 2045. The ambitious plan includes a 85% reduction in greenhouse gas emissions, a 94% cut in oil consumption, and the creation of 4 million jobs.

How hot will California be in 2050? ›

In Los Angeles, extreme heat is the city's biggest climate threat and greatest cause of climate-related deaths and hospital visits. By 2050, daily maximum average temperatures in California are expected to rise by 4.4 to 5.8 degrees, and heat waves in cities could cause two to three times more heat-related deaths.

What are the biggest contributors to climate change in California? ›

Natural gas plants are the largest source of greenhouse gases among California's in-state producers of electricity. California has a law mandating zero-carbon, all-renewable electricity by 2045 but it has a long way to go: About 42% of power generated in the state came from natural gas in 2022.

Is California getting hotter or colder? ›

Comparing the current winter season to the ones in past decades, winters in California are getting warmer. In the Sacramento Valley, the average winter temperature increased by 2.3 degrees from 1970 to 2022. However small that number may seem, it will have larger implications in the future.

How is California going green? ›

California is reducing its environmental footprint through sustainable state government operations and practice including energy efficient state building design and construction, renewable energy generation at state facilities, environmentally preferable state purchasing, and sustainable state-owned vehicles.

What is the climate change plan in California? ›

Most recently, California passed Assembly Bill (AB) 1279 (Muratsuchi, Chapter 337, Statutes of 2022) which sets goals to achieve carbon neutrality by 2045 and ensures that by 2045, statewide anthropogenic GHG emissions are reduced at least 85% below 1990 levels. California's 2022 Scoping Plan Update6 lays out the ...

What is the best solution for climate change? ›

Cutting carbon is the only long-term solution for avoiding climate impacts. In the short-term, we need to adapt. That means everything from discouraging development in high-risk areas, to planning for water scarcity, to building more resilient cities and communities.

What will California be like in 2100? ›

Sea level is predicted to rise 2 to 7 feet on California's coast by 2100, and the frequency of extreme events such as droughts, heat waves, wildfires, and floods is expected to increase.

How hot will the Earth be in 3000? ›

By the year 3000, the warming range is 1.9°C to 5.6°C. While surface temperatures approach equilibrium relatively quickly, sea level continues to rise for many centuries.

Will it still snow in 2050? ›

The report says annual snow totals will decrease 24% by the year 2050. That means people will have to adapt.

What is the solution to climate change in California? ›

California Gov. Gavin Newsom's last-minute legislative plan for tackling the climate crisis was largely victorious as lawmakers approved laws to set interim targets for 100% clean energy, regulate projects to remove carbon from the atmosphere and smokestacks, and end new oil drilling near communities.

Where in CA is best for climate change? ›

Climate Risks for Cities in California

The city with the lowest overall risk is Riverside. For heat, San Francisco has the lowest risk and Riverside has the highest risk. For precipitation, Bakersfield has the lowest risk and Sacramento has the highest risk.

Is California a leader in climate change? ›

Among those who place the most importance on California being a world leader on climate change, more than eight in ten believe that the effects of climate change have already begun to happen, that climate change is affecting their local community, that climate change is a serious threat to the state's future, and that ...

How does the California current affect climate? ›

In the image above, note how the green phytoplankton near the coast trace out the meanders and eddies from the California Current. The presence of this cool water current keeps the region's temperatures milder for much of the year than they otherwise would be.

What will California look like after climate change? ›

Climate change threatens California's future

Sea level is predicted to rise 2 to 7 feet on California's coast by 2100, and the frequency of extreme events such as droughts, heat waves, wildfires, and floods is expected to increase.

What places in California are affected by climate change? ›

California was deluged with storms and floods at the beginning of 2023, bringing home the severity of impacts from climate change, particularly in the low-income communities of Planada in Merced County and Pajaro in Monterey County. Despite the deluge, California's longstanding groundwater crisis continued.

What is the biggest environmental problem in California? ›

A new statewide survey by the nonpartisan Public Policy Institute of California finds most residents consider the drought, wildfires and climate change as the biggest environmental issues facing the state.

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