The Wall Street Journal has an interesting article on Chilango's bond issuance (hat tip: Graeme Acheson). Chilango is a Mexican fast-food outlet in London, which is seeking to expand across London. To achieve this, they have issued a four-year bond with an 8% coupon. However, for those who invest £10,000 in the bonds, there is an additional coupon in the form of a free burrito every week during the lifetime of the bond. This seems to be a trend, with Hotel Chocolat paying its bond coupon with chocolate (see video below)! Issuing bonds helps small firms bypass banks and they are not a new innovation. Small firms financed themselves in this manner before 1913.
The Berkeley Earth Project , an independent study of global warming, has found that the earth has become a degree warmer over the past half century. However, the statistical uncertainty surrounding pre-1920 estimates makes it very hard to say much about long-term trends - click here for graph . This is one of my concerns with the global warming debate - we simply don't have trustworthy long-run data which looks at temperature changes over the last millennium (or two). My second concern with the global warming debate is that it is very hard to prove any sort of casual link between global warming and human activity. The scientists may be able to show correlation between global warming and our production of carbon dioxides etc., but correlation is not causation. My third concern with the debate is that those who are sceptical or agnostic are stereotyped as flat-earthers or intellectually-challenged crackpots. This only stifles debate and the progress of science itself.