We have lived with deadly levels of air pollution for years, which have made us more vulnerable to coronavirus.
Caroline Lucas
Clear skies and clean air must become the new normal. We must re-design our cities, reclaiming the streets for cycling and walking, allowing people to walk along streets unpolluted by traffic.
Humanity's inclination to be kind during the coronavirus crisis is an unprecedented, uplifting demonstration of solidarity.
Our railways maintain a healthy economy and society. They keep businesses running and families close. They're a vital public service and must be treated as such.
Addressing the climate and biodiversity crises requires us to radically change our economic models, moving away from economic growth as the over-riding measure of progress and moving instead towards improving health and wellbeing for people and nature. That means a different economic model taking us towards a sustainable economy.
When this coronavirus crisis is over, what kind of society will we be? A more important question is what kind of society do we want to be?
In a fair society, the solution to unemployment is not to force people into workfare programmes which do little more than supply big companies with free labour. It's to create jobs that pay a living wage, for example, by investing in new sustainable infrastructure projects and boosting the jobs-rich low carbon economy.
Britain is a parliamentary democracy. Power rests in Parliament, in the House of Commons, and the government - the executive - has to seek the consent of MPs for its legislation.
Huge public spending and borrowing in the face of an existential crisis is clearly the right thing to do, as is putting people's health and wellbeing above the pursuit of economic growth.
I come from a very conventional and non-political background.
The point about Roosevelt's New Deal was that it was visionary - for the 1930s.
A girl named Rachel transformed my childhood. Life was safe, suburban and comfortable, but ours was a home without books. I met her aged 11, and she introduced me to the joys of poetry and literature. It opened my mind to ideas I could never have dreamed of.
I am a longstanding critic of British foreign policy - and an opponent of the authoritarian, quasi-imperialist, racist, homophobic politics of Putin.
I joined the Campaign for Nuclear Disarmament in the 1980s and protested at Greenham Common.
We always knew that whatever party Nigel Farage led - first UKIP and then the Brexit party - was basically a vehicle for his own political self-glorification and now he's proved it.
We must instil our future leaders with the expertise, knowledge and skills to prevent climate breakdown and restore nature to health.
Many are outspoken about the climate crisis, but conveniently ignore the fact that support for fossil fuels is not just incompatible with curbing emissions but dangerously counterproductive.
No more top-down politics with Westminster dictating what's right for every community. We must all be partners in designing a better future for our country.
I've been arrested a few times. The most high-profile instance was when protesting at the fracking site in Balcombe. It's an industry which will undermine our chances of tackling climate change.
I think the Greens are posing some of the most important questions of our time, for example how we live sustainably on a planet of finite resources and a rising population, and how do we do that in a way that doesn't exceed environmental limits and which is fair.
The billions being spent on Trident replacement would be much better spent on investing in developing the infrastructure we need for a zero-carbon economy, as well as in protecting public services. To use the money on a project that makes Britain and the world a far more dangerous place is politically irresponsible and economically obscene.
The Government needs to recognise that we live on a planet with finite resources - and start measuring our progress as a society by the quality of our lives, not the expansion of our GDP.
The truth is that goodness is hardwired in humanity.
I accept that as an elected politician I have a number of other tools that I can use to bring about change but I would also say that the Green party remains committed to appropriate non-violent direct action and I think it is a tool in some cases that is legitimate.
I do think that if people are taking the time to think about their environmental footprint when it comes to how many flights they take, whether or not they have a 4X4, whether or not they are going to have a patio heater, then putting the question to themselves about how many kids they are going to have is a reasonable thing to do.
There is an important message that all political leaders should be taking from the response to coronavirus, and that is that people are prepared to make hard choices for the common good.
The models that the other parties have used where you have a very powerful leader squashing any kind of independent ideas from the grass roots is not very attractive to the electorate.
Renewable energy is not unaffordable as the fossil fuel giants would like us to believe.
Banks and investors have poured money into dirty energy and high-carbon for decades. While no single policy is a magic bullet for the climate crisis, there is also no way of solving it that doesn't involve a fundamental reimagining of the role of our financial system.
It's going to take everyone to rebuild a fairer, more sustainable, more beautiful Britain.
With the huge benefits of investing in renewables, energy efficiency and demand reduction becoming ever more obvious, it's clear that there needs to be far greater scrutiny of the policy decisions that are propelling Britain towards a nuclear future.
We live in a country of grotesque inequalities.
The only newspaper in our house when I was growing up was the Daily Mail, and we would never have dreamt of discussing politics around the dinner table. So my involvement in politics came about through activism.
We can no longer allow special corporate interests to shape our political and financial decisions, while our citizens and communities cry for real climate action.
Advanced industrialised economies like ourselves cannot afford to go on growing, particularly if we want to give people in poorer countries a chance of being able to at least meet their basic needs.
Petra Kelly is my inspiration, one of the founders of the German Greens.
I've been in the Green party for a very long time - when was it, 1986 - and I joined the party because I seriously wanted the party to have influence.
We need to block dirty diesels getting public money - no question there.
We must not let the response to the coronavirus crisis make the climate and inequality crises even worse.
I don't think Ed Miliband has the courage of his convictions. He's scared he'll be painted by the rightwing press as a throwback to the time of the 'big state.'
We should entrust our young people with a voice to express their views on what their futures should look like.
A government can't cut its way out of a recession any more than you can dig yourself out of a hole.
Coronavirus has exposed for all what many of us already knew - some of our most important workers have barely enough to live on, and millions are condemned to financial insecurity, inequality and food poverty.
I did try being a vegan.
Trump is surrounding himself with so many climate sceptics and when he himself says he thinks climate change is a Chinese hoax then there are real concerns.
If a prime minister can suspend parliament to deliver a 'no deal' Brexit, what will the government try to do next with no democratic scrutiny or oversight?
I don't think politics just happens in Parliament. It happens on the streets and in classrooms.
We cannot afford to burn the vast majority of known fossil fuel reserves.
Continuing down a path where profit is king is unsustainable for our society, our health and our planet.
Violence against women is not inevitable.
