Carbon Dioxide (CO2) has been causing harmful effects to the environment and even to the
whole earth. Nowadays, it is the leading cause of global warming and the greenhouse effect …

Excess atmospheric ammonia (NH 3) leads to deleterious effects on biodiversity,
ecosystems, air quality and health, and it is therefore essential to monitor its budget and …

The Network for the Detection of Atmospheric Composition Change (NDACC) is an
international global network of more than 90 stations making high-quality measurements of …

This paper is aimed at atmospheric scientists without formal training in statistical theory. Its
goal is to (1) provide a critical review of the rationale for trend analysis of the time series …

Non-methane hydrocarbons such as ethane are important precursors to tropospheric ozone
and aerosols. Using data from a global surface network and atmospheric column …

The amended and adjusted Montreal Protocol has continued to reduce emissions and
atmospheric abundances of most controlled ozone-depleting substances. By 2012, the total …

This chapter concerns atmospheric changes in ozone-depleting substances (ODSs), such
as chlorofluorocarbons (CFCs), halons, chlorinated solvents (eg, CCl 4 and CH 3 CCl 3) and …

CHAPTER 1 Page 1 CHAPTER 1 Ozone-Depleting Substances (ODSs) and Related
Chemicals Coordinating Lead Authors: Contributors: SA Montzka E. Atlas S. Reimann P …

Harmonized time series of column-averaged mole fractions of atmospheric methane and
ethane over the period 1999–2014 are derived from solar Fourier transform infrared (FTIR) …

Sharp rises in the atmospheric abundance of ethane (C 2 H 6) have been detected from
2009 onwards in the Northern Hemisphere as a result of the unprecedented growth in the …