How to reduce

Specifically:

Reduce your footprint for food, such as by eating lower on the food chain and by only purchasing enough food to eat without waste.
Reduce your footprint for transportation, such as by using public transportation, by carpooling, and by walking or cycling for local trips.
Reduce your footprint for housing, such as by living in a smaller space or with more people.

Some minor things:

Plant a tree. Compensate for the loss of trees by increasing carbon sequestration. Common Ground (Vol 17, no 3, p.4) reports estimates "that as much as 50% of the increase in atmospheric CO₂ over the last 50 years may be due to the effects of land-use change".
Compost. First keep a compost heap, using your tree leaves, coffee grounds, fruit and vegetable peelings. Second, turn it, so that the compost rots aerobically rather than producing methane (a strong greenhouse gas).

Climate change reported

In the 'last 50 years' (as of Summer 2006) the Yosemite Association reports:
- Worldwide on average, temperatures have risen 1.1°F (0.6°C).
- In the Sierra Nevada, temperatures have risen slightly faster, 1.8°F (1.0°C).

Millions of metric tons of carbon dioxide that are or would be released into the atmosphere (as of Summer 2006 in the newsletter of the Yosemite Association):
- Over 20, if Yosemite National Park burned by fire
- The equivalent of about 2: emitted annually by San Francisco.
- The equivalent of 0.02: emitted from Yosemite National Park in 2005. About a half were due to mobile combustion, a quarter due to forestry, and a seventh due to stationary combustion.

Books on the ecology of the central California Coast. Weather of the San Francisco Bay Region by Harold Gilliam.

The Jepson Manual: Higher Plants of California , by James C. Hickman (Editor), Willis Linn Jepson.
First published 1925, Willis Linn Jepson's Manual of the Flowering Plants of California is a standard reference for teachers, students, and naturalists.
This new volume includes a wealth of material accumulated over almost a century.
Two hundred botanists across North America contributed to this comprehensive resource and authoritative identification guide. Recommended for those with (or pursuing) formal education in botany and plant ID identification.

Redwood Region Flower Finder : A Guide to Identifying Wildflowers
of The Coastal Fog Belt of California
by Phoebe Watts, Sarah Ellen Watts (Illustrator).

Forest and Tree Home,
Glossary pages: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z.

[Thanks for visiting.]

Books on the ecology of the central California Coast.	Weather of the San Francisco Bay Region by Harold Gilliam.
	The Jepson Manual: Higher Plants of California , by James C. Hickman (Editor), Willis Linn Jepson. First published 1925, Willis Linn Jepson's Manual of the Flowering Plants of California is a standard reference for teachers, students, and naturalists. This new volume includes a wealth of material accumulated over almost a century. Two hundred botanists across North America contributed to this comprehensive resource and authoritative identification guide. Recommended for those with (or pursuing) formal education in botany and plant ID identification.
	Redwood Region Flower Finder : A Guide to Identifying Wildflowers of The Coastal Fog Belt of California by Phoebe Watts, Sarah Ellen Watts (Illustrator).