Load site variables programmatically?

[opdavies]

I've written some custom Twig filters on my site (https://raw.githubusercontent.com/opdavies/oliverdavies.uk/master/src/FormatTalksBundle/Twig/FormatTalksExtension.php) to format talks data as needed to generate a talks table.

Currently I have to pass in the talk data depending on the context, and the global events data which is stored as site.events in sculpin_site.yml (there are two examples of this on https://raw.githubusercontent.com/opdavies/oliverdavies.uk/master/source/talks.html.twig).

As the latter is always the same, is there a way for me to load it programatically within the Twig template or inject it in, so that I no longer need to pass it as an argument and simplify the templates.