• Publications
  • Influence
Stratospheric aerosol optical depths, 1850–1990
A global stratospheric aerosol database employed for climate simulations is described. For the period 1883-1990, aerosol optical depths are estimated from optical extinction data, whose qualityExpand
  • 856
  • 97
  • PDF
GISS analysis of surface temperature change
We describe the current GISS analysis of surface temperature change for the period 1880-1999 based primarily on meteorological station measurements. The global surface temperature in 1998 was theExpand
  • 725
  • 92
  • PDF
A parameterization for the absorption of solar radiation in the earth's atmosphere
Abstract A method is described for rapidly computing the amount of solar energy absorbed at the earth's surface and in the atmosphere as a function of altitude. The method is a parametric treatment,Expand
  • 1,417
  • 79
Optimizing the exercise protocol for cardiopulmonary assessment.
Twelve normal men performed 1-min incremental exercise tests to exhaustion in approximately 10 min on both treadmill and cycle ergometer. The maximal O2 uptake (VO2 max) and anaerobic threshold (AT)Expand
  • 743
  • 38
Predicted values for clinical exercise testing.
Following thorough evaluation at rest, 265 of 400 current or ex-shipyard workers rode a cycle ergometer with equal work increments each minute to exhaustion while continuous multiple noninvasiveExpand
  • 719
  • 34
Exercise Pathophysiology in Patients With Primary Pulmonary Hypertension
Background— Patients with primary pulmonary hypertension (PPH) have a pulmonary vasculopathy that leads to exercise intolerance due to dyspnea and fatigue. To better understand the basis of theExpand
  • 501
  • 30
  • PDF
Role of p21-activated kinase pathway defects in the cognitive deficits of Alzheimer disease
Defects in dendritic spines are common to several forms of cognitive deficits, including mental retardation and Alzheimer disease. Because mutation of p21-activated kinase (PAK) can lead to mentalExpand
  • 280
  • 28
  • PDF
Scientific reticence and sea level rise
I suggest that a 'scientific reticence' is inhibiting the communication of a threat of a potentially large sea level rise. Delay is dangerous because of system inertias that could create a situationExpand
  • 341
  • 27
  • PDF
A slippery slope: How much global warming constitutes “dangerous anthropogenic interference”?
  • J. Hansen
  • Environmental Science
  • 1 February 2005
In a recent article (Hansen, 2004) I included a photograph taken by Roger Braithwaite with a rushing stream pouring into a hole in the Greenland ice sheet. The photo relates to my contention thatExpand
  • 217
  • 27
  • PDF
Effects of obesity on respiratory function.
Obesity, because it alters the relationship between the lungs, chest wall, and diaphragm, has been expected to alter respiratory function. We studied 43 massively obese but otherwise normal,Expand
  • 531
  • 20