Previous Activity 1: Keeling’s Data on CO2 levels in the West

Location

Date(s)

Elevation

(m)

CO2 Min

(ppm)

CO2 Max

(ppm)

1

Coastal Redwood Canyon, CA

June 6-7, 1956

150

335

384

2

Olympic Rain Forest, WA

Sept. 6-7, 1955

170

308

404

3

Coastal Redwood Valley, CA

May 18-19, 1955

70

316

389

4

Coastal Redwood Valley, CA

June 5-6, 1956

70

314

374

5

Sierra Nevada Pine/Fir Forest, CA

June 2-3, 1955

1950

313

364

6

Sierra Nevada Pine/Fir Forest, CA

June 10-11, 1956

1950

314

357

7

Mogollan Rim Pine Forest, AZ

May 16-17, 1956

2100

316

326

8

Cascade Mtn. Divide Forest, WA

Aug. 31-Sept. 1, 1955

1900

307

321

9

Sierra Nevada, CA

June 3, 1955

2500-3000

314

318

10

Southern California beach

June 22, 1955

0

313

315

11

Inyo Mtns., CA

July 8-9 1955

3800-4300

312

319

12

Washington beach

Sept. 6-7, 1955

0

309

310

13

Southern California bay (aircraft)

Nov. 27, 1955

0

315

315

14

Borrego Desert, CA

Jan. 31-Feb 2, 1956

340

311

318

15

Inyo Mtns., CA

Mar. 9-14, 1956

3800

315

318

16

Sonoran Desert, AZ

Apr. 21-22, 1956

550

314

320

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