Two - no Three! - Exhibitions

London is playing host to two - no three! - exhibitions at the moment that seem set to be great for me:

Bristolian land artist Richard Long at Tate Britain.

"Long's work comes from his love of nature and through the experience of making solitary walks. These take him through rural and remote areas in Britain, or as far afield as the plains of Canada, Mongolia and Bolivia. Long never makes significant alterations to the landscapes he passes through. Instead he marks the ground or adjusts the natural features of a place by up-ending stones for example, or making simple traces. He usually works in the landscape but sometimes uses natural materials in the gallery. His work explores relationships between time, distance, geography, measurement and movement."

The Futurists at Tate Britain. Always worth a laugh, the Futurists.

"This exhibition both showcases the work of key Futurists such as Giacomo Balla, Umberto Boccioni and Gino Severini and explores art movements reacting to Futurism. Highlights include Boccioni's dynamic bronze Unique Forms of Continuity in Space 1913 and Picasso's Head of a Woman (Fernande) 1909 as well as major works by artists such as Braque, Malevich and Duchamp."

And this new one at the Barbican, heard about this on Front Row tonight - Radical Nature: Art and Architecture for a Changing Planet 1969-2009.

"The beauty and wonder of nature have provided inspiration for artists and architects for centuries. Since the 1960s, the increasingly evident degradation of the natural world and the effects of climate change have brought a new urgency to their responses. Radical Nature is the first exhibition to bring together key figures across different generations who have created utopian works and inspiring solutions for our ever-changing planet."

The programme also talks about Richard Long. It does have Janet Street-Porter on it, but it's interesting.