In 2025, the world is at a critical juncture in the fight against climate change. Countries are working to implement the Paris Agreement, but progress is uneven, and more ambitious action is needed to limit global warming to 1.5°C above pre-industrial levels.

The annual UN climate conference, COP33, was held in 2025, with countries agreeing to accelerate the phase-down of fossil fuels and increase funding for climate adaptation in developing countries. This was a significant step forward, but many experts believe it still does not go far enough.

Renewable energy capacity is growing rapidly, with solar and wind power becoming the cheapest sources of electricity in most countries. However, the transition to clean energy is being slowed by supply chain issues, permitting challenges, and resistance from fossil fuel interests.

Developing countries are calling for more financial support from wealthy nations, who are historically responsible for most greenhouse gas emissions. The Loss and Damage Fund, established at COP28, is starting to disburse money, but more funding is needed to help countries adapt to climate change.

Climate impacts are becoming more severe, with heatwaves, droughts, floods, and wildfires affecting communities around the world. These impacts are particularly severe in vulnerable regions like small island states, Africa, and South Asia.

Businesses are taking action to reduce their carbon emissions, with many setting net-zero targets. However, there is growing scrutiny of corporate climate claims, with concerns about greenwashing and insufficient action.

Technological innovation is playing an increasingly important role in climate action, with advances in carbon capture, energy storage, and clean hydrogen offering new tools for reducing emissions across difficult sectors. Carbon capture and storage facilities are beginning to scale up in the cement, steel, and chemical industries, while green hydrogen is emerging as a viable option for decarbonizing shipping and heavy industry. Investing in these technologies is seen as essential for meeting climate targets in sectors where direct electrification is difficult.

Adaptation finance has become a growing priority, with countries recognizing that even with aggressive mitigation, some climate impacts are now unavoidable. Climate-resilient infrastructure, early warning systems, and drought-resistant agriculture are among the investments being scaled up to protect communities from extreme weather. Development banks and international funds are increasing their support for adaptation projects, though needs continue to outpace available resources.

Agriculture and food systems are receiving renewed attention in climate policy, as the sector accounts for a significant share of global emissions while facing severe threats from changing weather patterns. Programs to promote sustainable farming, reduce food waste, and shift dietary patterns toward lower-emission foods are being expanded in many countries. International cooperation on agricultural technology transfer is helping farmers in developing regions adapt to evolving conditions while reducing emissions.

Cities are emerging as important arenas for climate action, with urban centers responsible for a substantial share of global emissions and offering significant opportunities for reduction. Green building standards, expanded public transit, and investment in urban green spaces are being adopted by municipalities around the world. Many cities are going beyond national targets, setting their own ambitious climate goals and sharing best practices through global city networks.

Scientific assessments continue to underscore the urgency of climate action, with researchers warning that the window to limit warming to manageable levels is narrowing. New findings on sea-level rise, extreme weather frequency, and ecosystem tipping points are informing policy decisions and public understanding of climate risks. Scientists emphasize that both mitigation and adaptation are necessary, and that delays will only increase the costs and challenges of responding to climate change.

Civil society movements are continuing to push for more ambitious climate action, with young people playing a key role. These movements are raising awareness about the urgency of the climate crisis and holding governments and businesses accountable for their commitments.

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