My name is Andy Haines. I'm professor of environmental change in public health at the London School of hygiene and tropical medicine. And I'll be talking, focusing really on the issue of climate change and how it's going to impact on human health. Indeed, how it's already impacted on human health. And the kind of actions that we need to take in order to reduce the impacts. And there are two broad types of actions adapting to climate change as best we can. And mitigating, in other words, cutting emissions that are driving climate change. So in my talk, I'll discuss the various categories, the various types of impacts that climate change has on human health. And these range from the very direct, like heat extreme heat exposure, for example, exposure to floods and droughts. Through to the less direct, for example, infectious diseases, waterborne, foodborne diseases, vectorborne diseases such as malaria and dengue, changing their distributions. And then through to those very indirect impacts that are mediated through the effects on socioeconomic systems. So, for example, increasing poverty, perhaps conflict, population displacement and so on. So I'll be discussing, we're giving a brief overview of these different categories of effects and how they can impact on human health and how they're beginning to impact on human health already. How these impacts will be larger over time. But then I'll turn to talking about potential actions that we can take in order to try and reduce the impacts on climate change on health. Both adapting to climate change, for example, through more effective healthcare delivery systems, which are more resilient to shocks, early warning systems for heat waves and disease outbreaks and so on. But then very importantly, I'll conclude by talking about the opportunities and the benefits of moving towards a zero carbon economy and net zero emissions economy over coming decades. And I'll point out how that can benefit human health, not just by preventing dangerous climate change, but also by bringing near-term benefits. For example, through region-stay evolution, through healthier, more sustainable diets and food systems, more sustainable cities. And also through decarbonizing our healthcare systems that are responsible for about 5% of greenhouse gas emissions. So although my lecture wheel focus quite a lot on the negative dimensions of climate change in health and the real risks that we're running at the moment, it'll also end our hope on a positive note by talking about the actions that we can take and we must take if we're going to reduce the risk of dangerous climate change and set humanity on a course for a safe, healthy, healthier future.