The two canaries in the coal mine

These cookies and scripts are necessary for the website to function and cannot be switched off. They are usually only set in response to actions made by you which amount to a request for services, suchas setting your privacy preferences, logging in or filling in forms. You can set your browser to block oralert you about these cookies, but some parts of the site will not then work. These cookies do not store any personally identifiable information.

These cookies and scripts allow us to count visits and traffic sources, so we can measure and improve the performance of our site. They help us know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies and scripts, we will not know when you have visited our site.

These cookies and scripts may be set through our site by external video hosting services likeYouTube or Vimeo. They may be used to deliver video content on our website. It’s possible for the video provider to build a profile of your interests and show you relevant adverts on this or other websites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies or scripts it is possible that embedded video will not function as expected.

Google Fonts is a font embedding service library. Google Fonts are stored on Google's CDN. The Google Fonts API is designed to limit the collection, storage, and use of end-user data to only what is needed to serve fonts efficiently. Use of Google Fonts API is unauthenticated. No cookies are sent by website visitors to the Google Fonts API. Requests to the Google Fonts API are made to resource-specific domains, such as fonts.googleapis.com or fonts.gstatic.com. This means your font requests are separate from and don't contain any credentials you send to google.com while using other Google services that are authenticated, such as Gmail.

These cookies and scripts may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant adverts on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies and scripts, you will experience less targeted advertising.