Fast for The Climate

Why We Fast

We Fast for the Climate to send a message to governments that people from all walks of life, from all corners of the globe, and from all faiths and creeds expect climate action. We demand a just transition to a safe climate future. To achieve this, we call for:

  • World leaders to use the Paris Climate Accord to create a path to completely phase out of fossil fuel emissions and phase in of 100% renewable energy by 2050, with sustainable energy access for all.
  • People worldwide to reconsider their own consumption patterns and – in particular – adopt a mindful, conscious relationship with food; and
  • The leaders of those countries who are less vulnerable to the climate crisis to take real steps to meet their commitments to the world’s most climate vulnerable people.


Join us in fasting in solidarity with our Muslim brothers and sisters this Ramadan on June 10th.

Already, millions of people have lost their homes and their livelihoods as a result of climate change. Yet government action remains profoundly inadequate and fails to secure the benefits a clean energy revolution would deliver for people and the planet.

The time to solve the crisis is now. We expect countries to cut carbon pollution and to secure a renewable energy supply by 2050. We want individuals to continue to lead the way by adopting climate solutions through their own consumption. We expect richer countries to help poorer nations reduce their own pollution and adapt their communities to climate impacts, while we urge all world leaders to work together in order to ensure the planet is a safe and better place for future generations.



There are different kinds of food fast:

1. Fasting from food: This most common form of fast is to give up food, but continue to drink liquids. Some people drink only water, but others drink juice, clear liquids or even fresh juices or smoothies. This is the kind of fast we encourage for most people. It’s up to you to set your own limits.

2. Partial fasting: Some people choose to continue to eat some food, but restrict what they eat. This could be giving up some meals, or giving up some foods – such as going vegan or vegetarian for a day, or only eating locally grown food. If you do not think you should give up food for a day due to health concerns, family or work responsibilities, or any other reason, we encourage you to consider this option.

3. Absolute fasting: This type of fast is where you abstain entirely from food and drink. Unless you have experience with this kind of fasting, we do not encourage people to try this kind of fast for 24 hours. If you wish to do an absolute fast for the climate for a day, we strongly recommend that you speak to a medical professional first.

Ultimately, Fast for the Climate is a movement. To build our movement, we need to look after our health and be safe. That’s why we encourage you to set your own limits. If you are healthy, fasting for a day won't harm you.  If you are suffering from any serious health problems, do check with your doctor before fasting.


  • Don’t eat too much the day before, but ease yourself into it with a light meal beforehand so it isn’t too much of a shock for your body.
  • While you are fasting, drink plenty of water or other liquids.
  • Limit your intake of caffeine or alcohol both before and during your fast.
  • Fast with someone else; fasting is normally a deep personal experience, but sometimes it’s good to talk through it with someone else.
  • When you break your fast, ease yourself gently into eating again with a small amount of light food first.
  • Use your body’s feelings of hunger to remind you of your purpose and focus on the reasons for your fast instead of the temporal feelings of hunger.



For some people, fasting from food might not be practical, safe, or possible. And that’s okay. If you are one of those people, we encourage you to to consider alternative ways that you can fast. What could you give up for a day? What about giving up caffeine, or alcohol, or even just chocolate? All of these things will be affected by climate change. These are just ideas – what you give up is up to you.

One of the most popular alternative fasts within our movement is a carbon fast, where people deliberately and voluntarily reduce their carbon footprint for a day. While it probably would be almost impossible to absolutely eliminate your carbon emissions, you can reduce them drastically. As with our fast from food, you can set your own limits. Here are a few ways to carbon fast:

  • Don’t drive for a day – or, if it’s possible for you, don’t even use any fossil-fuel powered transport and get around by cycling or walking!
  • Don’t use gas or electricity (unless you’re lucky enough to know it comes from renewable sources!) for heating or cooking for day. That’s right – have a cold shower.
  • Don’t use electric lighting for a day.

Think about what parts of your liftestyle contribute the most to your carbon emissions, and see if you can cut them for a day each month – or even more often. Many of our fasters have made ongoing lifestyle changes to reduce their greenhouse gas emissions. Let’s be part of the solution, not the problem!