Author Archives: asclegg

Stourhead in January

To Stourhead yesterday where I volunteer in the garden.  Perfect winter morning.

At the far side of the lake is largest temple in this classical garden, the Pantheon, a one quarter size copy of the real thing.

In the forground is the old tulip tree probably one of the garden’s orginal trees dating from the 1730s or so.

The tuliip tree is a native of the US east coast and was first brought to Britain around 1690.

Every 10m or so of the lake path is owned by a Robin. They hop around threateningly and dangerously close until you leave for the next encounter.

One of them owns the Pantheon.  My first task of the day is to unlock it and let in its owner.  He hopped in and carried out a routine crumb inspection followed very quietly by me and a rather overwhelmed young visiting family.

By the time I clicked, the robin had hopped on.

Caught him just as he landed in the Pantheon door

 

 

 

 

 

 

His wife stayed dutifully outside in the garden.

His front garden. The view from the Pantheon steps

 

 

 

New words needed to describe global warming

One problem with global warming is that we dont have the right words to describe it.

‘Warming’ to most of us means ‘increase in temperature’. But this is not what we really mean when we talk about global warming.  What we really mean is ‘increase in energy’ (although when something experiences an increase in energy its temperature usually goes up). Most (about 95%) of the global warming energy from the sun that gets trapped here is absorbed by water in the sea.

This trapped solar energy causes the temperature of the sea to rise but not by very much; currently by 0.01° C per year. But because there is so much sea this rise requires a huge amount of energy; terajoules of it. But what is a terajoule? We dont have any vernacular words to describe large amounts of energy.

There is one phrase, however, that conjours up a lot of energy; the phrase ‘Hiroshima bomb’.

The current warming of sea surface waters, 0.01° C per year, sounds small enough to ignore with safety. But this works out at four Hiroshima bombsworth of energy every second of every day – which looks a touch more serious.

The detail is here. The IPPC stats show a global  building up of heat energy of 8 x 1021 Joules per year while the Hiroshima bomb yield was 6.3 x 1013 Joules .  More here.